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WSH · 2025 transactions
Data through 2026-10-05
| Date | Player | Type | Detail |
|---|---|---|---|
| Dec 31 | Matt Mervis | Signed as Free Agent | Washington Nationals signed free agent 1B Matt Mervis to a minor league contract. |
| Dec 27 | Kervin Pichardo | Signed as Free Agent | Washington Nationals signed free agent SS Kervin Pichardo to a minor league contract. |
| Dec 23 | Jackson Rutledge | Number Change | RHP Jackson Rutledge changed number to 44. |
| Dec 23 | Brad Lord | Number Change | RHP Brad Lord changed number to 41. |
| Dec 23 | Brady House | Number Change | 3B Brady House changed number to 12. |
| Dec 23 | Daylen Lile | Number Change | RF Daylen Lile changed number to 4. |
| Dec 22 | Foster Griffin | Signed as Free Agent | Washington Nationals signed free agent LHP Foster Griffin. |
| Dec 20 | Warming Bernabel | Signed as Free Agent | Washington Nationals signed free agent 3B Warming Bernabel to a minor league contract. |
| Dec 15 | Luis Perales | Trade | Boston Red Sox traded RHP Luis Perales to Washington Nationals for LHP Jake Bennett. |
| Dec 10 | Brady Hill | Status Change | RHP Brady Hill roster status changed by Washington Nationals. |
| Dec 10 | Eiker Huizi | Status Change | RHP Eiker Huizi roster status changed by Washington Nationals. |
| Dec 10 | Brady Hill | Status Change | RHP Brady Hill roster status changed by Washington Nationals. |
| Dec 10 | Cesar Rojas | Rule 5 Draft Minors | Washington Nationals purchased contract of RHP Cesar Rojas in the Rule 5 Draft, AAA Phase. |
| Dec 10 | Eiker Huizi | Rule 5 Draft Minors | Washington Nationals purchased contract of RHP Eiker Huizi in the Rule 5 Draft, AAA Phase. |
| Dec 10 | Jack Rogers | Rule 5 Draft Minors | Washington Nationals purchased contract of LF Jack Rogers in the Rule 5 Draft, AAA Phase. |
| Dec 10 | Dylan Tebrake | Rule 5 Draft Minors | Washington Nationals purchased contract of RHP Dylan Tebrake in the Rule 5 Draft, AAA Phase. |
| Dec 10 | Brady Hill | Rule 5 Draft Minors | Washington Nationals purchased contract of RHP Brady Hill in the Rule 5 Draft, AAA Phase. |
| Dec 10 | Sandy Gaston | Rule 5 Draft Minors | Washington Nationals purchased contract of RHP Sandy Gaston in the Rule 5 Draft, AAA Phase. |
| Dec 10 | Griff McGarry | Rule 5 Selection | Washington Nationals purchased contract of RHP Griff McGarry in the Rule 5 Draft. |
| Dec 8 | Amin Ramirez | Signed as Free Agent | Washington Nationals signed free agent RHP Amin Ramirez to a minor league contract. |
| Dec 6 | Isaac Lyon | Status Change | RHP Isaac Lyon roster status changed by Washington Nationals. |
| Dec 6 | Isaac Lyon | Status Change | RHP Isaac Lyon roster status changed by Washington Nationals. |
| Dec 6 | Harry Ford | Trade | Washington Nationals traded LHP Jose A. Ferrer to Seattle Mariners for C Harry Ford and RHP Isaac Lyon. |
| Nov 26 | Tyler Baum | Signed as Free Agent | Washington Nationals signed free agent RHP Tyler Baum to a minor league contract. |
| Nov 24 | Leandro Pineda | Signed as Free Agent | Washington Nationals signed free agent OF Leandro Pineda to a minor league contract. |
| Nov 18 | Eddy Yean | Signed as Free Agent | Washington Nationals signed free agent RHP Eddy Yean to a minor league contract. |
| Nov 18 | Johan Otanez | Signed as Free Agent | Washington Nationals signed free agent RHP Johan Otanez to a minor league contract. |
| Nov 18 | Riley Cornelio | Selected | Washington Nationals selected the contract of RHP Riley Cornelio from Rochester Red Wings. |
| Nov 18 | Jake Bennett | Selected | Washington Nationals selected the contract of LHP Jake Bennett from Harrisburg Senators. |
| Nov 18 | Christian Franklin | Selected | Washington Nationals selected the contract of LF Christian Franklin from Rochester Red Wings. |
| Nov 12 | Euri Montero | Signed as Free Agent | Washington Nationals signed free agent RHP Euri Montero to a minor league contract. |
| Nov 8 | Erick Mejia | Signed as Free Agent | Washington Nationals signed free agent RHP Erick Mejia to a minor league contract. |
| Nov 6 | Trey Lipscomb | Outrighted | Washington Nationals sent 3B Trey Lipscomb outright to Rochester Red Wings. |
| Nov 6 | DJ Herz | Status Change | Washington Nationals activated LHP DJ Herz from the 60-day injured list. |
| Nov 6 | Trevor Williams | Status Change | Washington Nationals activated RHP Trevor Williams from the 60-day injured list. |
| Nov 6 | Drew Millas | Status Change | Washington Nationals activated C Drew Millas from the 60-day injured list. |
| Nov 6 | Josiah Gray | Status Change | Washington Nationals activated RHP Josiah Gray from the 60-day injured list. |
| Nov 6 | Zach Brzykcy | Claimed Off Waivers | Miami Marlins claimed RHP Zach Brzykcy off waivers from Washington Nationals. |
| Nov 6 | Ryan Loutos | Claimed Off Waivers | Seattle Mariners claimed RHP Ryan Loutos off waivers from Washington Nationals. |
| Nov 2 | Derek Law | Declared Free Agency | RHP Derek Law elected free agency. |
| Nov 2 | Paul DeJong | Declared Free Agency | 3B Paul DeJong elected free agency. |
| Nov 2 | Josh Bell | Declared Free Agency | 1B Josh Bell elected free agency. |
| Oct 31 | Jorge Alfaro | Declared Free Agency | C Jorge Alfaro elected free agency. |
| Oct 29 | Eduardo Salazar | Outrighted | Washington Nationals sent RHP Eduardo Salazar outright to Rochester Red Wings. |
| Oct 29 | C.J. Stubbs | Outrighted | Washington Nationals sent C C.J. Stubbs outright to Rochester Red Wings. |
| Oct 29 | Shinnosuke Ogasawara | Outrighted | Washington Nationals sent LHP Shinnosuke Ogasawara outright to Rochester Red Wings. |
| Oct 29 | Mason Thompson | Outrighted | Washington Nationals sent RHP Mason Thompson outright to Rochester Red Wings. |
| Oct 23 | Maximin Medina | Signed as Free Agent | Washington Nationals signed free agent RHP Maximin Medina to a minor league contract. |
| Sep 29 | José Tena | Recalled | Washington Nationals recalled 3B José Tena from Rochester Red Wings. |
| Sep 29 | C.J. Stubbs | Recalled | Washington Nationals recalled C C.J. Stubbs from Rochester Red Wings. |
| Sep 29 | Eduardo Salazar | Recalled | Washington Nationals recalled RHP Eduardo Salazar from Rochester Red Wings. |
| Sep 29 | Ryan Loutos | Recalled | Washington Nationals recalled RHP Ryan Loutos from Rochester Red Wings. |
| Sep 29 | Trey Lipscomb | Recalled | Washington Nationals recalled 3B Trey Lipscomb from Rochester Red Wings. |
| Sep 29 | Andry Lara | Recalled | Washington Nationals recalled RHP Andry Lara from Rochester Red Wings. |
| Sep 29 | Jake Eder | Recalled | Washington Nationals recalled LHP Jake Eder from Rochester Red Wings. |
| Sep 29 | Zach Brzykcy | Recalled | Washington Nationals recalled RHP Zach Brzykcy from Rochester Red Wings. |
| Sep 29 | Mason Thompson | Status Change | Washington Nationals activated RHP Mason Thompson from the 15-day injured list. |
| Sep 29 | Cole Henry | Status Change | Washington Nationals activated RHP Cole Henry from the 15-day injured list. |
| Sep 29 | MacKenzie Gore | Status Change | Washington Nationals activated LHP MacKenzie Gore from the 15-day injured list. |
| Sep 29 | Keibert Ruiz | Status Change | Washington Nationals activated C Keibert Ruiz from the 7-day injured list. |
| Sep 24 | Orelvis Martinez | Signed as Free Agent | Washington Nationals signed free agent 2B Orelvis Martinez to a minor league contract. |
| Sep 23 | Mason Thompson | Status Change | Washington Nationals placed RHP Mason Thompson on the 15-day injured list retroactive to September 20, 2025. Right biceps tendinitis. |
| Sep 23 | Julian Fernández | Recalled | Washington Nationals recalled RHP Julian Fernández from Rochester Red Wings. |
| Sep 23 | Orlando Ribalta | Recalled | Washington Nationals recalled RHP Orlando Ribalta from Rochester Red Wings. |
| Sep 19 | Josiah Gray | Assigned | Washington Nationals sent RHP Josiah Gray on a rehab assignment to Rochester Red Wings. |
| Sep 17 | Orlando Ribalta | Optioned | Washington Nationals optioned RHP Orlando Ribalta to Rochester Red Wings. |
| Sep 17 | Sauryn Lao | Recalled | Washington Nationals recalled RHP Sauryn Lao from Rochester Red Wings. |
| Sep 14 | Cole Henry | Status Change | Washington Nationals placed RHP Cole Henry on the 15-day injured list. Back strain. |
| Sep 14 | Orlando Ribalta | Recalled | Washington Nationals recalled RHP Orlando Ribalta from Rochester Red Wings. |
| Sep 13 | Josiah Gray | Assigned | Washington Nationals sent RHP Josiah Gray on a rehab assignment to Harrisburg Senators. |
| Sep 11 | MacKenzie Gore | Status Change | Washington Nationals placed LHP MacKenzie Gore on the 15-day injured list. Right ankle impingement. |
| Sep 11 | Orlando Ribalta | Optioned | Washington Nationals optioned RHP Orlando Ribalta to Rochester Red Wings. |
| Sep 11 | MacKenzie Gore | Status Change | Washington Nationals activated LHP MacKenzie Gore from the 15-day injured list. |
| Sep 7 | Josiah Gray | Assigned | Washington Nationals sent RHP Josiah Gray on a rehab assignment to Wilmington Blue Rocks. |
| Sep 7 | Josiah Gray | Assigned | Washington Nationals sent RHP Josiah Gray on a rehab assignment to Wilmington Blue Rocks. |
| Sep 5 | Darren Baker | Outrighted | Washington Nationals sent 2B Darren Baker outright to Rochester Red Wings. |
| Sep 3 | Sauryn Lao | Optioned | Washington Nationals optioned RHP Sauryn Lao to Rochester Red Wings. |
| Sep 3 | Sauryn Lao | Claimed Off Waivers | Washington Nationals claimed RHP Sauryn Lao off waivers from Seattle Mariners. |
| Sep 3 | Darren Baker | Designated for Assignment | Washington Nationals designated 2B Darren Baker for assignment. |
| Sep 2 | Keibert Ruiz | Assigned | Washington Nationals sent C Keibert Ruiz on a rehab assignment to Harrisburg Senators. |
| Sep 2 | Drew Millas | Status Change | Washington Nationals transferred C Drew Millas from the 10-day injured list to the 60-day injured list. Left second finger fracture and dislocation. |
| Sep 2 | C.J. Stubbs | Optioned | Washington Nationals optioned C C.J. Stubbs to Rochester Red Wings. |
| Sep 2 | Jorge Alfaro | Signed as Free Agent | Washington Nationals signed free agent C Jorge Alfaro. |
| Sep 1 | Andrew Alvarez | Selected | Washington Nationals selected the contract of LHP Andrew Alvarez from Rochester Red Wings. |
| Sep 1 | Nasim Nuñez | Recalled | Washington Nationals recalled SS Nasim Nuñez from Rochester Red Wings. |
| Aug 30 | MacKenzie Gore | Status Change | Washington Nationals placed LHP MacKenzie Gore on the 15-day injured list retroactive to August 27, 2025. Left shoulder inflammation. |
| Aug 30 | Mason Thompson | Recalled | Washington Nationals recalled RHP Mason Thompson from Rochester Red Wings. |
| Aug 29 | C.J. Stubbs | Selected | Washington Nationals selected the contract of C C.J. Stubbs from Rochester Red Wings. |
| Aug 29 | Drew Millas | Status Change | Washington Nationals placed C Drew Millas on the 10-day injured list retroactive to August 28, 2025. Left second finger fracture and dislocation. |
| Aug 19 | Andrés Chaparro | Recalled | Washington Nationals recalled 1B Andrés Chaparro from Rochester Red Wings. |
| Aug 18 | José Tena | Optioned | Washington Nationals optioned 3B José Tena to Rochester Red Wings. |
| Aug 17 | Julian Fernández | Optioned | Washington Nationals optioned RHP Julian Fernández to Rochester Red Wings. |
| Aug 17 | Julian Fernández | Claimed Off Waivers | Washington Nationals claimed RHP Julian Fernández off waivers from Los Angeles Dodgers. |
| Aug 16 | Nathaniel Lowe | Released | Washington Nationals released 1B Nathaniel Lowe. |
| Aug 14 | Dylan Crews | Status Change | Washington Nationals activated RF Dylan Crews from the 60-day injured list. |
| Aug 14 | Nathaniel Lowe | Designated for Assignment | Washington Nationals designated 1B Nathaniel Lowe for assignment. |
| Aug 6 | Andry Lara | Optioned | Washington Nationals optioned RHP Andry Lara to Rochester Red Wings. |
| Aug 6 | Cade Cavalli | Recalled | Washington Nationals recalled RHP Cade Cavalli from Rochester Red Wings. |
| Aug 5 | PJ Poulin | Status Change | Washington Nationals activated LHP PJ Poulin. |
| Aug 5 | Clayton Beeter | Recalled | Washington Nationals recalled RHP Clayton Beeter from Rochester Red Wings. |
| Aug 5 | Ryan Loutos | Optioned | Washington Nationals optioned RHP Ryan Loutos to Rochester Red Wings. |
| Aug 5 | Zach Brzykcy | Optioned | Washington Nationals optioned RHP Zach Brzykcy to Rochester Red Wings. |
| Aug 3 | PJ Poulin | Claimed Off Waivers | Washington Nationals claimed LHP PJ Poulin off waivers from Detroit Tigers. |
| Aug 2 | Carson Fischer | Signed as Free Agent | Washington Nationals signed free agent RHP Carson Fischer to a minor league contract. |
| Aug 1 | Shinnosuke Ogasawara | Recalled | Washington Nationals recalled LHP Shinnosuke Ogasawara from Rochester Red Wings. |
| Aug 1 | Ryan Loutos | Recalled | Washington Nationals recalled RHP Ryan Loutos from Rochester Red Wings. |
| Aug 1 | Robert Hassell III | Recalled | Washington Nationals recalled CF Robert Hassell III from Rochester Red Wings. |
| Aug 1 | Orlando Ribalta | Recalled | Washington Nationals recalled RHP Orlando Ribalta from Rochester Red Wings. |
| Jul 31 | Alex Call | Trade | Washington Nationals traded RF Alex Call to Los Angeles Dodgers for RHP Sean Paul Liñan and RHP Eriq Swan. |
| Jul 31 | R.J. Sales | Trade | Washington Nationals traded RHP Kyle Finnegan to Detroit Tigers for RHP R.J. Sales and RHP Josh Randall. |
| Jul 31 | Ronny Cruz | Trade | Washington Nationals traded RHP Michael Soroka to Chicago Cubs for SS Ronny Cruz and LF Christian Franklin. |
| Jul 30 | Jake Eder | Optioned | Washington Nationals optioned LHP Jake Eder to Rochester Red Wings. |
| Jul 30 | Jake Eder | Trade | Washington Nationals traded LHP Andrew Chafin and RHP Luis García to Los Angeles Angels for LHP Jake Eder and 1B Sam Brown. |
| Jul 30 | Zach Brzykcy | Recalled | Washington Nationals recalled RHP Zach Brzykcy from Rochester Red Wings. |
| Jul 29 | Dylan Crews | Assigned | Washington Nationals sent RF Dylan Crews on a rehab assignment to Rochester Red Wings. |
| Jul 29 | Dylan Crews | Assigned | Washington Nationals sent RF Dylan Crews on a rehab assignment to Rochester Red Wings. |
| Jul 27 | José Tena | Recalled | Washington Nationals recalled 3B José Tena from Rochester Red Wings. |
| Jul 27 | Clayton Beeter | Optioned | Washington Nationals optioned RHP Clayton Beeter to Rochester Red Wings. |
| Jul 26 | Browm Martinez | Trade | Washington Nationals traded 3B Amed Rosario to New York Yankees for RHP Clayton Beeter and CF Browm Martinez. |
| Jul 25 | Amed Rosario | Status Change | 3B Amed Rosario roster status changed by Washington Nationals. |
| Jul 25 | Ethan Petry | Signed | Washington Nationals signed OF Ethan Petry. |
| Jul 24 | Coy James | Signed | Washington Nationals signed SS Coy James. |
| Jul 24 | Landon Harmon | Signed | Washington Nationals signed RHP Landon Harmon. |
| Jul 24 | Orlando Ribalta | Optioned | Washington Nationals optioned RHP Orlando Ribalta to Rochester Red Wings. |
| Jul 23 | Juan Cruz | Signed | Washington Nationals signed 1B Juan Cruz. |
| Jul 23 | Orlando Ribalta | Status Change | Washington Nationals activated RHP Orlando Ribalta from the 15-day injured list. |
| Jul 22 | Miguel Sime Jr. | Signed | Washington Nationals signed RHP Miguel Sime Jr.. |
| Jul 22 | Mason Thompson | Optioned | Washington Nationals optioned RHP Mason Thompson to Rochester Red Wings. |
| Jul 22 | Konnor Pilkington | Selected | Washington Nationals selected the contract of LHP Konnor Pilkington from Rochester Red Wings. |
| Jul 22 | Dylan Crews | Status Change | Washington Nationals transferred RF Dylan Crews from the 10-day injured list to the 60-day injured list. Left oblique strain. |
| Jul 21 | Jordan Williams | Signed as Free Agent | Washington Nationals signed free agent OF Jordan Williams to a minor league contract. |
| Jul 21 | Owen Puk | Signed | Washington Nationals signed RHP Owen Puk. |
| Jul 21 | Levi Huesman | Signed | Washington Nationals signed LHP Levi Huesman. |
| Jul 21 | Jacob Walsh | Signed | Washington Nationals signed 1B Jacob Walsh. |
| Jul 21 | Nick Hollifield | Signed | Washington Nationals signed C NIck Hollifield. |
| Jul 21 | Tucker Biven | Signed | Washington Nationals signed RHP Tucker Biven. |
| Jul 21 | Ben Moore | Signed | Washington Nationals signed LHP Ben Moore. |
| Jul 21 | Jack Moroknek | Signed | Washington Nationals signed OF Jack Moroknek. |
| Jul 19 | Eli Willits | Signed | Washington Nationals signed SS Eli Willits. |
| Jul 18 | Orlando Ribalta | Assigned | Washington Nationals sent RHP Orlando Ribalta on a rehab assignment to Rochester Red Wings. |
| Jul 15 | Hunter Hines | Signed | Washington Nationals signed 1B Hunter Hines. |
| Jul 15 | Wyatt Henseler | Signed | Washington Nationals signed 3B Wyatt Henseler. |
| Jul 15 | Riley Maddox | Signed | Washington Nationals signed RHP Riley Maddox. |
| Jul 15 | Julian Tonghini | Signed | Washington Nationals signed RHP Julian Tonghini. |
| Jul 15 | Boston Smith | Signed | Washington Nationals signed C Boston Smith. |
| Jul 13 | Andry Lara | Recalled | Washington Nationals recalled RHP Andry Lara from Harrisburg Senators. |
| Jul 13 | Shinnosuke Ogasawara | Optioned | Washington Nationals optioned LHP Shinnosuke Ogasawara to Rochester Red Wings. |
| Jul 8 | Orlando Ribalta | Assigned | Washington Nationals sent RHP Orlando Ribalta on a rehab assignment to Harrisburg Senators. |
| Jul 8 | Eduardo Salazar | Optioned | Washington Nationals optioned RHP Eduardo Salazar to Rochester Red Wings. |
| Jul 8 | Drew Millas | Recalled | Washington Nationals recalled C Drew Millas from Rochester Red Wings. |
| Jul 8 | Keibert Ruiz | Status Change | Washington Nationals placed C Keibert Ruiz on the 7-day injured list retroactive to July 6, 2025. |
| Jul 8 | Trevor Williams | Status Change | Washington Nationals transferred RHP Trevor Williams from the 15-day injured list to the 60-day injured list. Right elbow sprain. |
| Jul 8 | Luis García | Signed as Free Agent | Washington Nationals signed free agent RHP Luis García. |
| Jul 8 | Orlando Ribalta | Assigned | Washington Nationals sent RHP Orlando Ribalta on a rehab assignment to Harrisburg Senators. |
| Jul 6 | Ryan Loutos | Optioned | Washington Nationals optioned RHP Ryan Loutos to Rochester Red Wings. |
| Jul 6 | Shinnosuke Ogasawara | Recalled | Washington Nationals recalled LHP Shinnosuke Ogasawara from Rochester Red Wings. |
| Jul 5 | Ranger Sarit | Signed as Free Agent | Washington Nationals signed free agent RHP Ranger Sarit to a minor league contract. |
| Jul 5 | Derek Law | Status Change | Washington Nationals placed RHP Derek Law on the 60-day injured list. Right forearm Inflammation. |
| Jul 5 | Zach Brzykcy | Optioned | Washington Nationals optioned RHP Zach Brzykcy to Rochester Red Wings. |
| Jul 5 | Mason Thompson | Status Change | Washington Nationals activated RHP Mason Thompson from the 60-day injured list. |
| Jul 4 | Drew Millas | Optioned | Washington Nationals optioned C Drew Millas to Rochester Red Wings. |
| Jul 4 | Trevor Williams | Status Change | Washington Nationals placed RHP Trevor Williams on the 15-day injured list. Right elbow sprain. |
| Jul 4 | Ryan Loutos | Recalled | Washington Nationals recalled RHP Ryan Loutos from Rochester Red Wings. |
| Jul 4 | Keibert Ruiz | Status Change | Washington Nationals activated C Keibert Ruiz from the 10-day injured list. |
| Jul 3 | Francisco Mejía | Signed as Free Agent | Washington Nationals signed free agent C Francisco Mejía to a minor league contract. |
| Jul 3 | Ryan Loutos | Optioned | Washington Nationals optioned RHP Ryan Loutos to Rochester Red Wings. |
| Jul 3 | Andrew Chafin | Status Change | Washington Nationals activated LHP Andrew Chafin from the 15-day injured list. |
| Jul 3 | Andry Lara | Optioned | Washington Nationals optioned RHP Andry Lara to Harrisburg Senators. |
| Jul 2 | Mason Thompson | Assigned | Washington Nationals sent RHP Mason Thompson on a rehab assignment to Rochester Red Wings. |
| Jul 2 | Andry Lara | Recalled | Washington Nationals recalled RHP Andry Lara from Harrisburg Senators. |
| Jul 1 | Andrés Chaparro | Optioned | Washington Nationals optioned 1B Andrés Chaparro to Rochester Red Wings. |
| Jul 1 | Paul DeJong | Status Change | Washington Nationals activated 3B Paul DeJong from the 10-day injured list. |
| Jun 25 | Julio Chivilli | Signed as Free Agent | Washington Nationals signed free agent RHP Hulio Chivilli to a minor league contract. |
| Jun 25 | Derek Law | Assigned | Washington Nationals sent RHP Derek Law on a rehab assignment to Rochester Red Wings. |
| Jun 24 | Keibert Ruiz | Status Change | Washington Nationals placed C Keibert Ruiz on the 10-day injured list. Head contusion. |
| Jun 24 | Drew Millas | Recalled | Washington Nationals recalled C Drew Millas from Rochester Red Wings. |
| Jun 19 | Derek Law | Assigned | Washington Nationals sent RHP Derek Law on a rehab assignment to Harrisburg Senators. |
| Jun 19 | Derek Law | Assigned | Washington Nationals sent RHP Derek Law on a rehab assignment to Harrisburg Senators. |
| Jun 18 | Mason Thompson | Assigned | Washington Nationals sent RHP Mason Thompson on a rehab assignment to Harrisburg Senators. |
| Jun 18 | Juan Yepez | Outrighted | Washington Nationals sent 1B Juan Yepez outright to Rochester Red Wings. |
| Jun 18 | Juan Yepez | Outrighted | Washington Nationals sent 1B Juan Yepez outright to Rochester Red Wings. |
| Jun 17 | Paul DeJong | Assigned | Washington Nationals sent 3B Paul DeJong on a rehab assignment to Harrisburg Senators. |
| Jun 16 | Brady House | Selected | Washington Nationals selected the contract of 3B Brady House from Rochester Red Wings. |
| Jun 16 | Daylen Lile | Recalled | Washington Nationals recalled RF Daylen Lile from Rochester Red Wings. |
| Jun 16 | José Tena | Optioned | Washington Nationals optioned 3B José Tena to Rochester Red Wings. |
| Jun 16 | Robert Hassell III | Optioned | Washington Nationals optioned CF Robert Hassell III to Rochester Red Wings. |
| Jun 16 | Juan Yepez | Designated for Assignment | Washington Nationals designated 1B Juan Yepez for assignment. |
| Jun 14 | Andrew Chafin | Status Change | Washington Nationals placed LHP Andrew Chafin on the 15-day injured list retroactive to June 11, 2025. Right hamstring strain. |
| Jun 14 | Ryan Loutos | Recalled | Washington Nationals recalled RHP Ryan Loutos from Rochester Red Wings. |
| Jun 14 | Mason Thompson | Assigned | Washington Nationals sent RHP Mason Thompson on a rehab assignment to FCL Nationals. |
| Jun 13 | Greider Colina | Signed as Free Agent | Washington Nationals signed free agent RHP Greider Colina to a minor league contract. |
| Jun 10 | Ryan Loutos | Claimed Off Waivers | Washington Nationals claimed RHP Ryan Loutos off waivers from Los Angeles Dodgers. |
| Jun 10 | Nasim Nuñez | Optioned | Washington Nationals optioned SS Nasim Nuñez to Rochester Red Wings. |
| Jun 10 | Andrés Chaparro | Recalled | Washington Nationals recalled 1B Andrés Chaparro from Rochester Red Wings. |
| Jun 9 | Nasim Nuñez | Optioned | Washington Nationals optioned SS Nasim Nuñez to Rochester Red Wings. |
| Jun 6 | Daylen Lile | Optioned | Washington Nationals optioned RF Daylen Lile to Rochester Red Wings. |
| Jun 6 | Jacob Young | Status Change | Washington Nationals activated CF Jacob Young from the 10-day injured list. |
| Jun 3 | Jacob Young | Assigned | Washington Nationals sent CF Jacob Young on a rehab assignment to Harrisburg Senators. |
| Jun 3 | Jacob Young | Assigned | Washington Nationals sent CF Jacob Young on a rehab assignment to Harrisburg Senators. |
| Jun 2 | Jorge López | Released | Washington Nationals released RHP Jorge López. |
| May 31 | Eduardo Salazar | Recalled | Washington Nationals recalled RHP Eduardo Salazar from Rochester Red Wings. |
| May 31 | Jorge López | Designated for Assignment | Washington Nationals designated RHP Jorge López for assignment. |
| May 28 | Delino DeShields | Signed as Free Agent | Washington Nationals signed free agent CF Delino DeShields to a minor league contract. |
| May 28 | Andrés Chaparro | Optioned | Washington Nationals optioned 1B Andrés Chaparro to Rochester Red Wings. |
| May 28 | Andrés Chaparro | Status Change | Washington Nationals activated 1B Andrés Chaparro from the 10-day injured list. |
| May 23 | Jacob Young | Status Change | Washington Nationals placed CF Jacob Young on the 10-day injured list retroactive to May 20, 2025. Left shoulder AC sprain. |
| May 23 | Daylen Lile | Selected | Washington Nationals selected the contract of CF Daylen Lile from Rochester Red Wings. |
| May 22 | Andrés Chaparro | Assigned | Washington Nationals sent 1B Andrés Chaparro on a rehab assignment to Rochester Red Wings. |
| May 22 | Andrés Chaparro | Assigned | Washington Nationals sent 1B Andrés Chaparro on a rehab assignment to Rochester Red Wings. |
| May 21 | Dylan Crews | Status Change | Washington Nationals placed RF Dylan Crews on the 10-day injured list. Left oblique strain. |
| May 21 | Robert Hassell III | Recalled | Washington Nationals recalled CF Robert Hassell III from Rochester Red Wings. |
| May 16 | Luis García Jr. | Status Change | Washington Nationals activated 2B Luis García Jr. from the paternity list. |
| May 16 | Trey Lipscomb | Optioned | Washington Nationals optioned 3B Trey Lipscomb to Rochester Red Wings. |
| May 14 | Andrés Chaparro | Assigned | Washington Nationals sent 1B Andrés Chaparro on a rehab assignment to FCL Nationals. |
| May 13 | Luis García Jr. | Status Change | Washington Nationals placed 2B Luis García Jr. on the paternity list. |
| May 13 | Trey Lipscomb | Recalled | Washington Nationals recalled 3B Trey Lipscomb from Rochester Red Wings. |
| May 13 | Bryce Conley | Signed as Free Agent | Washington Nationals signed free agent RHP Bryce Conley to a minor league contract. |
| May 13 | Tommy Kane | Signed as Free Agent | Washington Nationals signed free agent LHP Tommy Kane to a minor league contract. |
| May 11 | Cade Cavalli | Optioned | Washington Nationals optioned RHP Cade Cavalli to Rochester Red Wings. |
| May 11 | Cade Cavalli | Status Change | Washington Nationals activated RHP Cade Cavalli from the 15-day injured list. |
| May 10 | Lucas Sims | Released | Washington Nationals released RHP Lucas Sims. |
| May 10 | Zach Brzykcy | Recalled | Washington Nationals recalled RHP Zach Brzykcy from Rochester Red Wings. |
| May 9 | Euri Montero | Signed as Free Agent | Washington Nationals signed free agent RHP Euri Montero to a minor league contract. |
| May 7 | Zach Brzykcy | Optioned | Washington Nationals optioned RHP Zach Brzykcy to Rochester Red Wings. |
| May 7 | Eduardo Salazar | Optioned | Washington Nationals optioned RHP Eduardo Salazar to Rochester Red Wings. |
| May 7 | Michael Soroka | Status Change | Washington Nationals activated RHP Michael Soroka from the 15-day injured list. |
| May 6 | Parker Dunshee | Signed as Free Agent | Washington Nationals signed free agent RHP Parker Dunshee to a minor league contract. |
| May 6 | Adrian Sampson | Signed as Free Agent | Washington Nationals signed free agent RHP Adrian Sampson to a minor league contract. |
| May 6 | Zach Brzykcy | Recalled | Washington Nationals recalled RHP Zach Brzykcy from Rochester Red Wings. |
| May 4 | Colin Poche | Outrighted | Washington Nationals sent LHP Colin Poche outright to Rochester Red Wings. |
| May 2 | Michael Soroka | Assigned | Washington Nationals sent RHP Michael Soroka on a rehab assignment to Rochester Red Wings. |
| May 1 | Andrew Chafin | Signed as Free Agent | Washington Nationals signed free agent LHP Andrew Chafin. |
| May 1 | Colin Poche | Designated for Assignment | Washington Nationals designated LHP Colin Poche for assignment. |
| Apr 29 | Cade Cavalli | Assigned | Washington Nationals sent RHP Cade Cavalli on a rehab assignment to Rochester Red Wings. |
| Apr 25 | Zach Brzykcy | Optioned | Washington Nationals optioned RHP Zach Brzykcy to Rochester Red Wings. |
| Apr 25 | Zach Brzykcy | Status Change | Washington Nationals activated RHP Zach Brzykcy from the 15-day injured list. |
| Apr 24 | Zach Brzykcy | Status Change | Washington Nationals reassigned RHP Zach Brzykcy to the minor leagues. |
| Apr 24 | Zach Brzykcy | Status Change | Washington Nationals reassigned RHP Zach Brzykcy to the minor leagues. |
| Apr 24 | Trey Lipscomb | Optioned | Washington Nationals optioned 3B Trey Lipscomb to Rochester Red Wings. |
| Apr 24 | CJ Abrams | Status Change | Washington Nationals activated SS CJ Abrams from the 10-day injured list. |
| Apr 24 | Zach Brzykcy | Assigned | Washington Nationals sent RHP Zach Brzykcy on a rehab assignment to Rochester Red Wings. |
| Apr 24 | Cade Cavalli | Assigned | Washington Nationals sent RHP Cade Cavalli on a rehab assignment to Harrisburg Senators. |
| Apr 22 | Zach Brzykcy | Assigned | Washington Nationals sent RHP Zach Brzykcy on a rehab assignment to Wilmington Blue Rocks. |
| Apr 22 | Zach Brzykcy | Assigned | Washington Nationals sent RHP Zach Brzykcy on a rehab assignment to Wilmington Blue Rocks. |
| Apr 22 | CJ Abrams | Assigned | Washington Nationals sent SS CJ Abrams on a rehab assignment to Harrisburg Senators. |
| Apr 22 | Michael Soroka | Assigned | Washington Nationals sent RHP Michael Soroka on a rehab assignment to Harrisburg Senators. |
| Apr 21 | Nauris De La Cruz | Signed as Free Agent | Washington Nationals signed free agent OF Nauris De La Cruz to a minor league contract. |
| Apr 21 | Andry Lara | Optioned | Washington Nationals optioned RHP Andry Lara to Rochester Red Wings. |
| Apr 20 | Jorge López | Status Change | Washington Nationals activated RHP Jorge López. |
| Apr 20 | Andry Lara | Recalled | Washington Nationals recalled RHP Andry Lara from Rochester Red Wings. |
| Apr 19 | Cade Cavalli | Assigned | Washington Nationals sent RHP Cade Cavalli on a rehab assignment to Fredericksburg Nationals. |
| Apr 19 | Jorge López | Suspension | RHP Jorge López suspended. |
| Apr 19 | Cade Cavalli | Assigned | Washington Nationals sent RHP Cade Cavalli on a rehab assignment to Fredericksburg Nationals. |
| Apr 16 | Cole Henry | Status Change | Washington Nationals activated RHP Cole Henry. |
| Apr 16 | Trey Lipscomb | Recalled | Washington Nationals recalled 3B Trey Lipscomb from Rochester Red Wings. |
| Apr 16 | Paul DeJong | Status Change | Washington Nationals placed SS Paul DeJong on the 10-day injured list. Fractured nose. |
| Apr 16 | Keibert Ruiz | Number Change | C Keibert Ruiz changed number to 20. |
| Apr 16 | Luis García Jr. | Number Change | 2B Luis García Jr. changed number to 2. |
| Apr 16 | Jake Irvin | Number Change | RHP Jake Irvin changed number to 27. |
| Apr 16 | Riley Adams | Number Change | C Riley Adams changed number to 15. |
| Apr 16 | Jackson Rutledge | Number Change | RHP Jackson Rutledge changed number to 79. |
| Apr 16 | Nasim Nuñez | Number Change | SS Nasim Nuñez changed number to 26. |
| Apr 16 | José A. Ferrer | Number Change | LHP Jose A. Ferrer changed number to 47. |
| Apr 16 | MacKenzie Gore | Number Change | LHP MacKenzie Gore changed number to 1. |
| Apr 16 | Alex Call | Number Change | RF Alex Call changed number to 17. |
| Apr 16 | Mitchell Parker | Number Change | LHP Mitchell Parker changed number to 70. |
| Apr 16 | Nathaniel Lowe | Number Change | 1B Nathaniel Lowe changed number to 33. |
| Apr 16 | José Tena | Number Change | 3B José Tena changed number to 8. |
| Apr 16 | Eduardo Salazar | Number Change | RHP Eduardo Salazar changed number to 62. |
| Apr 16 | Cole Henry | Number Change | RHP Cole Henry changed number to 99. |
| Apr 16 | Trevor Williams | Number Change | RHP Trevor Williams changed number to 32. |
| Apr 16 | Dylan Crews | Number Change | RF Dylan Crews changed number to 3. |
| Apr 16 | Lucas Sims | Number Change | RHP Lucas Sims changed number to 39. |
| Apr 16 | Kyle Finnegan | Number Change | RHP Kyle Finnegan changed number to 67. |
| Apr 16 | Paul DeJong | Number Change | SS Paul DeJong changed number to 14. |
| Apr 16 | Brad Lord | Number Change | RHP Brad Lord changed number to 61. |
| Apr 16 | Jorge López | Number Change | RHP Jorge López changed number to 21. |
| Apr 16 | Amed Rosario | Number Change | 2B Amed Rosario changed number to 13. |
| Apr 16 | Josh Bell | Number Change | 1B Josh Bell changed number to 19. |
| Apr 16 | Riley Adams | Number Change | C Riley Adams changed number to 15. |
| Apr 16 | Josh Bell | Number Change | 1B Josh Bell changed number to 19. |
| Apr 16 | Alex Call | Number Change | RF Alex Call changed number to 17. |
| Apr 16 | Dylan Crews | Number Change | RF Dylan Crews changed number to 3. |
| Apr 16 | Paul DeJong | Number Change | SS Paul DeJong changed number to 14. |
| Apr 16 | José A. Ferrer | Number Change | LHP Jose A. Ferrer changed number to 47. |
| Apr 16 | Kyle Finnegan | Number Change | RHP Kyle Finnegan changed number to 67. |
| Apr 16 | Luis García Jr. | Number Change | 2B Luis García Jr. changed number to 2. |
| Apr 16 | MacKenzie Gore | Number Change | LHP MacKenzie Gore changed number to 1. |
| Apr 16 | Cole Henry | Number Change | RHP Cole Henry changed number to 99. |
| Apr 16 | Jake Irvin | Number Change | RHP Jake Irvin changed number to 27. |
| Apr 16 | Jorge López | Number Change | RHP Jorge López changed number to 21. |
| Apr 16 | Brad Lord | Number Change | RHP Brad Lord changed number to 61. |
| Apr 16 | Nathaniel Lowe | Number Change | 1B Nathaniel Lowe changed number to 33. |
| Apr 16 | Nasim Nuñez | Number Change | SS Nasim Nuñez changed number to 26. |
| Apr 16 | Mitchell Parker | Number Change | LHP Mitchell Parker changed number to 70. |
| Apr 16 | Colin Poche | Number Change | LHP Colin Poche changed number to 41. |
| Apr 16 | Amed Rosario | Number Change | 2B Amed Rosario changed number to 13. |
| Apr 16 | Keibert Ruiz | Number Change | C Keibert Ruiz changed number to 20. |
| Apr 16 | Jackson Rutledge | Number Change | RHP Jackson Rutledge changed number to 79. |
| Apr 16 | Eduardo Salazar | Number Change | RHP Eduardo Salazar changed number to 62. |
| Apr 16 | Lucas Sims | Number Change | RHP Lucas Sims changed number to 39. |
| Apr 16 | José Tena | Number Change | 3B José Tena changed number to 8. |
| Apr 16 | Trevor Williams | Number Change | RHP Trevor Williams changed number to 32. |
| Apr 16 | James Wood | Number Change | LF James Wood changed number to 29. |
| Apr 16 | Jacob Young | Number Change | CF Jacob Young changed number to 30. |
| Apr 15 | Zach Brzykcy | Assigned | Washington Nationals sent RHP Zach Brzykcy on a rehab assignment to Fredericksburg Nationals. |
| Apr 15 | Mitchell Parker | Number Change | LHP Mitchell Parker changed number to 42. |
| Apr 15 | Luis García Jr. | Number Change | 2B Luis García Jr. changed number to 42. |
| Apr 15 | Keibert Ruiz | Number Change | C Keibert Ruiz changed number to 42. |
| Apr 15 | Riley Adams | Number Change | C Riley Adams changed number to 42. |
| Apr 15 | Jake Irvin | Number Change | RHP Jake Irvin changed number to 42. |
| Apr 15 | Alex Call | Number Change | RF Alex Call changed number to 42. |
| Apr 15 | Jackson Rutledge | Number Change | RHP Jackson Rutledge changed number to 42. |
| Apr 15 | José A. Ferrer | Number Change | LHP Jose A. Ferrer changed number to 42. |
| Apr 15 | MacKenzie Gore | Number Change | LHP MacKenzie Gore changed number to 42. |
| Apr 15 | Cole Henry | Number Change | RHP Cole Henry changed number to 42. |
| Apr 15 | Nasim Nuñez | Number Change | SS Nasim Nuñez changed number to 42. |
| Apr 15 | Jacob Young | Number Change | CF Jacob Young changed number to 42. |
| Apr 15 | Eduardo Salazar | Number Change | RHP Eduardo Salazar changed number to 42. |
| Apr 15 | Nathaniel Lowe | Number Change | 1B Nathaniel Lowe changed number to 42. |
| Apr 15 | Dylan Crews | Number Change | RF Dylan Crews changed number to 42. |
| Apr 15 | José Tena | Number Change | 3B José Tena changed number to 42. |
| Apr 15 | James Wood | Number Change | LF James Wood changed number to 42. |
| Apr 15 | Paul DeJong | Number Change | SS Paul DeJong changed number to 42. |
| Apr 15 | Amed Rosario | Number Change | 2B Amed Rosario changed number to 42. |
| Apr 15 | Trevor Williams | Number Change | RHP Trevor Williams changed number to 42. |
| Apr 15 | Kyle Finnegan | Number Change | RHP Kyle Finnegan changed number to 42. |
| Apr 15 | Lucas Sims | Number Change | RHP Lucas Sims changed number to 42. |
| Apr 15 | Colin Poche | Number Change | LHP Colin Poche changed number to 42. |
| Apr 15 | Brad Lord | Number Change | RHP Brad Lord changed number to 42. |
| Apr 15 | Josh Bell | Number Change | 1B Josh Bell changed number to 42. |
| Apr 15 | Jorge López | Number Change | RHP Jorge López changed number to 42. |
| Apr 13 | Cole Henry | Recalled | Washington Nationals recalled RHP Cole Henry from Rochester Red Wings. |
| Apr 13 | Orlando Ribalta | Status Change | Washington Nationals placed RHP Orlando Ribalta on the 15-day injured list retroactive to April 10, 2025. Right biceps strain. |
| Apr 12 | Nasim Nuñez | Recalled | Washington Nationals recalled SS Nasim Nuñez from Rochester Red Wings. |
| Apr 12 | CJ Abrams | Status Change | Washington Nationals placed SS CJ Abrams on the 10-day injured list. Right hip flexor strain. |
| Apr 4 | Michael Soroka | Status Change | Washington Nationals placed RHP Michael Soroka on the 15-day injured list retroactive to April 1, 2025. Right arm biceps strain. |
| Apr 4 | Jackson Rutledge | Recalled | Washington Nationals recalled RHP Jackson Rutledge from Rochester Red Wings. |
| Mar 28 | Charles Mack | Signed as Free Agent | Washington Nationals signed free agent C Charles Mack to a minor league contract. |
| Mar 26 | Andrés Chaparro | Status Change | Washington Nationals placed 1B Andrés Chaparro on the 10-day injured list retroactive to March 24, 2025. Oblique strain. |
| Mar 26 | Zach Brzykcy | Status Change | Washington Nationals placed RHP Zach Brzykcy on the 15-day injured list retroactive to March 24, 2025. Right quad strain. |
| Mar 26 | Cade Cavalli | Status Change | Washington Nationals placed RHP Cade Cavalli on the 15-day injured list retroactive to March 24, 2025. Tommy John surgery rehab. |
| Mar 26 | Derek Law | Status Change | Washington Nationals placed RHP Derek Law on the 15-day injured list retroactive to March 24, 2025. Right forearm Inflammation. |
| Mar 26 | Juan Yepez | Optioned | Washington Nationals optioned 1B Juan Yepez to Rochester Red Wings. |
| Mar 26 | Jackson Rutledge | Optioned | Washington Nationals optioned RHP Jackson Rutledge to Rochester Red Wings. |
| Mar 26 | DJ Herz | Status Change | Washington Nationals transferred LHP DJ Herz from the 15-day injured list to the 60-day injured list. |
| Mar 26 | Brad Lord | Selected | Washington Nationals selected the contract of RHP Brad Lord from Rochester Red Wings. |
| Mar 24 | DJ Herz | Status Change | Washington Nationals placed LHP DJ Herz on the 15-day injured list. |
| Mar 23 | Adam Bloebaum | Assigned | LHP Adam Bloebaum assigned to Washington Nationals. |
| Mar 23 | Marc Davis | Assigned | RHP Marc Davis assigned to Washington Nationals. |
| Mar 22 | Colin Poche | Selected | Washington Nationals selected the contract of LHP Colin Poche from Rochester Red Wings. |
| Mar 22 | Robert Cranz | Assigned | RHP Robert Cranz assigned to Washington Nationals. |
| Mar 22 | Jared Simpson | Assigned | LHP Jared Simpson assigned to Washington Nationals. |
| Mar 22 | Phillip Glasser | Assigned | 2B Phillip Glasser assigned to Washington Nationals. |
| Mar 22 | Viandel Pena | Assigned | 2B Viandel Pena assigned to Washington Nationals. |
| Mar 21 | Nasim Nuñez | Optioned | Washington Nationals optioned SS Nasim Nuñez to Rochester Red Wings. |
| Mar 21 | Shinnosuke Ogasawara | Optioned | Washington Nationals optioned LHP Shinnosuke Ogasawara to Rochester Red Wings. |
| Mar 21 | Drew Millas | Optioned | Washington Nationals optioned C Drew Millas to Rochester Red Wings. |
| Mar 21 | Michael Cuevas | Assigned | RHP Michael Cuevas assigned to Washington Nationals. |
| Mar 21 | Andy Acevedo | Assigned | CF Andy Acevedo assigned to Washington Nationals. |
| Mar 20 | Sir Jamison Jones | Assigned | C Sir Jamison Jones assigned to Washington Nationals. |
| Mar 20 | Elian Soto | Assigned | LF Elian Soto assigned to Washington Nationals. |
| Mar 20 | Nick Peoples | Assigned | LF Nick Peoples assigned to Washington Nationals. |
| Mar 19 | Trey Lipscomb | Optioned | Washington Nationals optioned 3B Trey Lipscomb to Rochester Red Wings. |
| Mar 19 | Robert Hassell III | Optioned | Washington Nationals optioned CF Robert Hassell III to Rochester Red Wings. |
| Mar 19 | Helder Rosario | Assigned | C Helder Rosario assigned to Washington Nationals. |
| Mar 19 | Yoander Rivero | Assigned | 3B Yoander Rivero assigned to Washington Nationals. |
| Mar 19 | J.T. Arruda | Assigned | 2B J.T. Arruda assigned to Washington Nationals. |
| Mar 19 | Francesco Barbieri | Assigned | OF Francesco Barbieri assigned to Washington Nationals. |
| Mar 18 | Evan Reifert | Returned | RHP Evan Reifert returned to Tampa Bay Rays from Washington Nationals. |
| Mar 18 | Yeuris Jimenez | Assigned | RHP Yeuris Jimenez assigned to Washington Nationals. |
| Mar 18 | Holden Powell | Assigned | RHP Holden Powell assigned to Washington Nationals. |
| Mar 17 | Darren Baker | Optioned | Washington Nationals optioned 2B Darren Baker to Rochester Red Wings. |
| Mar 17 | Chance Huff | Assigned | RHP Chance Huff assigned to Washington Nationals. |
| Mar 16 | Elijah Nunez | Assigned | LF Elijah Nunez assigned to Washington Nationals. |
| Mar 16 | Franchy Cordero | Assigned | OF Franchy Cordero assigned to Washington Nationals. |
| Mar 16 | Cortland Lawson | Assigned | SS Cortland Lawson assigned to Washington Nationals. |
| Mar 16 | Garvin Alston | Assigned | LHP Garvin Alston assigned to Washington Nationals. |
| Mar 16 | Wander Arias | Assigned | RHP Wander Arias assigned to Washington Nationals. |
| Mar 13 | Brad Lord | Assigned | RHP Brad Lord assigned to Washington Nationals. |
| Mar 13 | Thomas Schultz | Assigned | RHP Thomas Schultz assigned to Washington Nationals. |
| Mar 13 | Marcus Brown | Assigned | SS Marcus Brown assigned to Washington Nationals. |
| Mar 13 | Paul Witt | Assigned | 2B Paul Witt assigned to Washington Nationals. |
| Mar 13 | Tyler Schoff | Assigned | RHP Tyler Schoff assigned to Washington Nationals. |
| Mar 13 | Luke Young | Assigned | RHP Luke Young assigned to Washington Nationals. |
| Mar 13 | Jared McKenzie | Assigned | LF Jared McKenzie assigned to Washington Nationals. |
| Mar 10 | Jeremy De La Rosa | Assigned | CF Jeremy De La Rosa assigned to Washington Nationals. |
| Mar 10 | Seaver King | Assigned | SS Seaver King assigned to Washington Nationals. |
| Mar 10 | Gavin Dugas | Assigned | 2B Gavin Dugas assigned to Washington Nationals. |
| Mar 10 | Merrick Baldo | Assigned | RHP Merrick Baldo assigned to Washington Nationals. |
| Mar 10 | Johnathon Thomas | Assigned | RF Johnathon Thomas assigned to Washington Nationals. |
| Mar 10 | Miguel Gomez | Assigned | RHP Miguel Gomez assigned to Washington Nationals. |
| Mar 10 | Joe Naranjo | Assigned | 1B Joe Naranjo assigned to Washington Nationals. |
| Mar 10 | Chase Solesky | Assigned | RHP Chase Solesky assigned to Washington Nationals. |
| Mar 10 | Anthony Arguelles | Assigned | RHP Anthony Arguelles assigned to Washington Nationals. |
| Mar 7 | Andry Lara | Optioned | Washington Nationals optioned RHP Andry Lara to Rochester Red Wings. |
| Mar 7 | Cole Henry | Optioned | Washington Nationals optioned RHP Cole Henry to Rochester Red Wings. |
| Mar 6 | Armando Cruz | Assigned | SS Armando Cruz assigned to Washington Nationals. |
| Mar 6 | Nate Rombach | Assigned | C Nate Rombach assigned to Washington Nationals. |
| Mar 6 | Caleb Farmer | Assigned | C Caleb Farmer assigned to Washington Nationals. |
| Mar 6 | Moises Gallardo | Assigned | LF Moises Gallardo assigned to Washington Nationals. |
| Mar 5 | Sam Petersen | Status Change | CF Sam Petersen roster status changed by Washington Nationals. |
| Mar 5 | Sam Petersen | Assigned | CF Sam Petersen assigned to Washington Nationals. |
| Mar 5 | Matt Suggs | Assigned | C Matt Suggs assigned to Washington Nationals. |
| Mar 4 | Jack Dunn | Released | Washington Nationals released SS Jack Dunn. |
| Mar 4 | Stone Garrett | Outrighted | Washington Nationals sent RF Stone Garrett outright to Rochester Red Wings. |
| Mar 3 | Stone Garrett | Status Change | RF Stone Garrett roster status changed by Washington Nationals. |
| Mar 1 | Kevin Made | Assigned | SS Kevin Made assigned to Washington Nationals. |
| Mar 1 | Brandon Pimentel | Assigned | 1B Brandon Pimentel assigned to Washington Nationals. |
| Mar 1 | Samuel Vásquez | Assigned | RHP Samuel Vasquez assigned to Washington Nationals. |
| Mar 1 | Jorgelys Mota | Assigned | SS Jorgelys Mota assigned to Washington Nationals. |
| Feb 28 | T.J. White | Assigned | 1B T.J. White assigned to Washington Nationals. |
| Feb 27 | C.J. Stubbs | Assigned | C C.J. Stubbs assigned to Washington Nationals. |
| Feb 27 | Elijah Green | Assigned | CF Elijah Green assigned to Washington Nationals. |
| Feb 27 | Kyle Finnegan | Signed as Free Agent | Washington Nationals signed free agent RHP Kyle Finnegan. |
| Feb 27 | Stone Garrett | Designated for Assignment | Washington Nationals designated RF Stone Garrett for assignment. |
| Feb 26 | Dustin Saenz | Assigned | LHP Dustin Saenz assigned to Washington Nationals. |
| Feb 26 | Andrew Alvarez | Assigned | LHP Andrew Alvarez assigned to Washington Nationals. |
| Feb 26 | Jackson Cluff | Assigned | SS Jackson Cluff assigned to Washington Nationals. |
| Feb 25 | Brenner Cox | Assigned | RF Brenner Cox assigned to Washington Nationals. |
| Feb 25 | Brendan Collins | Assigned | RHP Brendan Collins assigned to Washington Nationals. |
| Feb 25 | Nick Schnell | Assigned | RF Nick Schnell assigned to Washington Nationals. |
| Feb 24 | Andry Araujo | Signed as Free Agent | Washington Nationals signed free agent OF Andry Araujo to a minor league contract. |
| Feb 23 | Ivan Armstrong | Assigned | RHP Ivan Armstrong assigned to Washington Nationals. |
| Feb 23 | Junior Santos | Assigned | RHP Junior Santos assigned to Washington Nationals. |
| Feb 23 | Carlos Romero | Assigned | RHP Carlos Romero assigned to Washington Nationals. |
| Feb 22 | Patrick Weigel | Status Change | RHP Patrick Weigel roster status changed by Washington Nationals. |
| Feb 22 | Garrett Davila | Status Change | LHP Garrett Davila roster status changed by Washington Nationals. |
| Feb 22 | Jarrett Gonzales | Assigned | C Jarrett Gonzales assigned to Washington Nationals. |
| Feb 22 | Patrick Weigel | Assigned | RHP Patrick Weigel assigned to Washington Nationals. |
| Feb 22 | Garrett Davila | Assigned | LHP Garrett Davila assigned to Washington Nationals. |
| Feb 22 | Brady Lindsly | Assigned | C Brady Lindsly assigned to Washington Nationals. |
| Feb 22 | Jack Dunn | Assigned | 3B Jack Dunn assigned to Washington Nationals. |
| Feb 19 | Lucas Sims | Signed as Free Agent | Washington Nationals signed free agent RHP Lucas Sims. |
| Feb 16 | Colin Poche | Signed as Free Agent | Washington Nationals signed free agent LHP Colin Poche to a minor league contract and invited him to spring training. |
| Feb 16 | Paul DeJong | Signed as Free Agent | Washington Nationals signed free agent SS Paul DeJong. |
| Feb 16 | Josiah Gray | Status Change | Washington Nationals placed RHP Josiah Gray on the 60-day injured list. |
| Jan 29 | Joe La Sorsa | Released | Washington Nationals released LHP Joe La Sorsa. |
| Jan 24 | Joe La Sorsa | Designated for Assignment | Washington Nationals designated LHP Joe La Sorsa for assignment. |
| Jan 24 | Shinnosuke Ogasawara | Signed as Free Agent | Washington Nationals signed free agent LHP Shinnosuke Ogasawara. |
| Jan 23 | Cayden Wallace | Assigned | Washington Nationals invited non-roster 3B Cayden Wallace to spring training. |
| Jan 23 | Yohandy Morales | Assigned | Washington Nationals invited non-roster 1B Yohandy Morales to spring training. |
| Jan 23 | Brady House | Assigned | Washington Nationals invited non-roster 3B Brady House to spring training. |
| Jan 23 | Andrew Pinckney | Assigned | Washington Nationals invited non-roster LF Andrew Pinckney to spring training. |
| Jan 23 | Daylen Lile | Assigned | Washington Nationals invited non-roster CF Daylen Lile to spring training. |
| Jan 23 | Maxwell Romero Jr. | Assigned | Washington Nationals invited non-roster C Maxwell Romero Jr. to spring training. |
| Jan 23 | Caleb Lomavita | Assigned | Washington Nationals invited non-roster C Caleb Lomavita to spring training. |
| Jan 23 | Tyler Stuart | Assigned | Washington Nationals invited non-roster RHP Tyler Stuart to spring training. |
| Jan 23 | Jarlin Susana | Assigned | Washington Nationals invited non-roster RHP Jarlin Susana to spring training. |
| Jan 23 | Jack Sinclair | Assigned | Washington Nationals invited non-roster RHP Jack Sinclair to spring training. |
| Jan 23 | Brad Lord | Assigned | Washington Nationals invited non-roster RHP Brad Lord to spring training. |
| Jan 23 | Marquis Grissom Jr. | Assigned | Washington Nationals invited non-roster RHP Marquis Grissom Jr. to spring training. |
| Jan 23 | Daison Acosta | Assigned | Washington Nationals invited non-roster RHP Daison Acosta to spring training. |
| Jan 22 | Randal Diaz | Status Change | SS Randal Diaz roster status changed by Washington Nationals. |
| Jan 22 | Randal Diaz | Status Change | SS Randal Diaz roster status changed by Washington Nationals. |
| Jan 22 | Randal Diaz | Signed as Free Agent | Washington Nationals signed free agent SS Randal Diaz to a minor league contract. |
| Jan 17 | Andrew Knizner | Signed as Free Agent | Washington Nationals signed free agent C Andrew Knizner to a minor league contract and invited him to spring training. |
| Jan 17 | Amos Willingham | Claimed Off Waivers | Atlanta Braves claimed RHP Amos Willingham off waivers from Washington Nationals. |
| Jan 15 | Daniel Hernandez | Signed as Free Agent | Washington Nationals signed free agent C Daniel Hernandez to a minor league contract. |
| Jan 15 | Joan Adon | Outrighted | Washington Nationals sent RHP Joan Adon outright to Rochester Red Wings. |
| Jan 15 | Jonierbis Garces | Signed as Free Agent | Washington Nationals signed free agent OF Jonierbis Garces to a minor league contract. |
| Jan 15 | Esnaider Vargas | Signed as Free Agent | Washington Nationals signed free agent SS Esnaider Vargas to a minor league contract. |
| Jan 15 | Jhondel Salas | Signed as Free Agent | Washington Nationals signed free agent RHP Jhondel Salas to a minor league contract. |
| Jan 15 | Brayan Cortesia | Signed as Free Agent | Washington Nationals signed free agent SS Brayan Cortesia to a minor league contract. |
| Jan 15 | Rony Bello | Signed as Free Agent | Washington Nationals signed free agent SS Rony Bello to a minor league contract. |
| Jan 15 | Adrian Tusen | Signed as Free Agent | Washington Nationals signed free agent SS Adrian Tusen to a minor league contract. |
| Jan 15 | Junior Castillo | Signed as Free Agent | Washington Nationals signed free agent C Junior Castillo to a minor league contract. |
| Jan 15 | Edgardo Figueroa | Signed as Free Agent | Washington Nationals signed free agent C Edgardo Figueroa to a minor league contract. |
| Jan 15 | Marconi German | Signed as Free Agent | Washington Nationals signed free agent SS Marconi German to a minor league contract. |
| Jan 15 | Hernan Mejia | Signed as Free Agent | Washington Nationals signed free agent LHP Hernan Mejia to a minor league contract. |
| Jan 15 | Jesus Carrasco | Signed as Free Agent | Washington Nationals signed free agent RHP Jesus Carrasco to a minor league contract. |
| Jan 15 | Manuel Ruiz | Signed as Free Agent | Washington Nationals signed free agent RHP Manuel Ruiz to a minor league contract. |
| Jan 15 | Juan Lopez | Signed as Free Agent | Washington Nationals signed free agent RHP Juan Lopez to a minor league contract. |
| Jan 11 | Amos Willingham | Designated for Assignment | Washington Nationals designated RHP Amos Willingham for assignment. |
| Jan 11 | Jorge López | Signed as Free Agent | Washington Nationals signed free agent RHP Jorge López. |
| Jan 8 | Andrés Chaparro | Status Change | Washington Nationals activated 1B Andrés Chaparro. |
| Jan 8 | Joan Adon | Designated for Assignment | Washington Nationals designated RHP Joan Adon for assignment. |
| Jan 8 | Amed Rosario | Signed as Free Agent | Washington Nationals signed free agent RF Amed Rosario. |
| Jan 7 | Garrett Davila | Signed as Free Agent | Washington Nationals signed free agent LHP Garrett Davila to a minor league contract. |
| Jan 6 | Donta' Williams | Status Change | CF Donta' Williams roster status changed by Washington Nationals. |
| Jan 6 | Carlos De La Cruz | Status Change | OF Carlos De La Cruz roster status changed by Washington Nationals. |
| Jan 6 | Donta' Williams | Signed as Free Agent | Washington Nationals signed free agent OF Donta' Williams to a minor league contract. |
| Jan 6 | Yeuris Jimenez | Signed as Free Agent | Washington Nationals signed free agent RHP Yeuris Jimenez to a minor league contract. |
| Jan 6 | Franchy Cordero | Signed as Free Agent | Washington Nationals signed free agent OF Franchy Cordero to a minor league contract. |
| Jan 6 | Carlos De La Cruz | Signed as Free Agent | Washington Nationals signed free agent OF Carlos De La Cruz to a minor league contract. |
| Jan 6 | Ivan Armstrong | Signed as Free Agent | Washington Nationals signed free agent RHP Ivan Armstrong to a minor league contract. |
| Jan 5 | Josh Bell | Signed as Free Agent | Washington Nationals signed free agent 1B Josh Bell. |
| Jan 1 | Junior Santos | Signed as Free Agent | Washington Nationals signed free agent RHP Junior Santos to a minor league contract. |