Washington Nationals
| Date | Player | Last Season Stats | Experience | Age | Old Team | New Team | Notes |
|---|---|---|---|---|---|---|---|
| 12-24-2025 | Matt Mervis (1B) | Minor League | 0 | 27 | ARI | WSH | Minor League contract |
| 12-19-2025 | Warming Bernabel (IF) | Minor League | 0 | 23 | COL | WSH | Minor League contract |
| 12-16-2025 | Foster Griffin (P) | Minor League | 2 | 30 | WSH | one-year | |
| 12-15-2025 | Jake Bennett (P) | - | 0 | 25 | WSH | BOS |
Traded
The Washington Nationals acquired pitcher Luis Perales from the Boston Red Sox for pitcher Jake Bennett.
|
| 12-15-2025 | Luis Perales (P) | - | 0 | 22 | BOS | WSH |
Traded
The Washington Nationals acquired pitcher Luis Perales from the Boston Red Sox for pitcher Jake Bennett.
|
| 12-15-2025 | Josh Bell (DH/1B) | .261, 27 HR, 88 RBI in 498 AB. | 7 | 33 | WSH | MIN | one-year |
| 12-10-2025 | Griff McGarry (P) | Minor League | 0 | 26 | PHI | WSH | Rule 5 (Major) |
| 12-10-2025 | Cesar Rojas (P) | - | 0 | 23 | TB | WSH | Rule 5 (Minor) |
| 12-10-2025 | Eiker Huizi (P) | - | 0 | 25 | SD | WSH | Rule 5 (Minor) |
| 12-10-2025 | Jack Rogers (OF) | Minor League | 0 | 26 | CIN | WSH | Rule 5 (Minor) |
| 12-10-2025 | Dylan Tebrake (P) | - | 0 | 26 | NYM | WSH | Rule 5 (Minor) |
| 12-10-2025 | Brady Hill (OF) | - | 0 | 25 | COL | WSH | Rule 5 (Minor) |
| 12-10-2025 | Sandy Gaston (P) | Minor League | 0 | 24 | LAA | WSH | Rule 5 (Minor) |
| 12-08-2025 | Daison Acosta (P) | - | 0 | 27 | WSH | SD | one-year |
| 12-06-2025 | Isaac Lyon (P) | - | 0 | 22 | SEA | WSH |
Traded
The Seattle Mariners acquired pitcher Jose A. Ferrer from the Washington Nationals for catcher Harry Ford and pitcher Isaac Lyon.
|
| 12-06-2025 | Harry Ford (C) | Minor League | 0 | 23 | SEA | WSH |
Traded
The Seattle Mariners acquired pitcher Jose A. Ferrer from the Washington Nationals for catcher Harry Ford and pitcher Isaac Lyon.
|
| 12-06-2025 | Jose A. Ferrer (P) | Minor League | 0 | 26 | WSH | SEA |
Traded
The Seattle Mariners acquired pitcher Jose A. Ferrer from the Washington Nationals for catcher Harry Ford and pitcher Isaac Lyon.
|
| 11-26-2025 | Tyler Baum (P) | Minor League | 0 | 28 | Ath | WSH | Minor League contract |
| 11-18-2025 | Samuel Vasquez (P) | Minor League | 0 | 26 | WSH | MIA | Minor League contract |
| 11-13-2025 | Jackson Cluff (IF) | Minor League | 0 | 29 | WSH | NYM | Minor League contract |
| 11-06-2025 | Nick Schnell (OF) | Minor League | 0 | 26 | WSH | Released | |
| 11-06-2025 | Zach Brzykcy (P) | Minor League | 0 | 26 | WSH | MIA | Released |
| 11-06-2025 | Ryan Loutos (P) | Minor League | 0 | 27 | WSH | SEA | Released |