 |
Player | Position | Former Team | New Team | Transaction date | Notes | |
| 1. | Dunn, Adam | 1B | WSH | CWS | 12/03/10 | Four-year contract | |
| 2. | Izturis, Cesar | SS | WSH | CIN | 1/09/13 | Minor league contract | |
| 3. | Ankiel, Rick | OF | WSH | HOU | 1/17/13 | Minor league contract | |
| 4. | Gorzelanny, Tom | RP | WSH | MIL | 12/21/12 | Two-year contract | |
| 5. | Nix, Laynce | OF | WSH | PHI | 12/08/11 | Agreed to two-year contract | |
| 6. | Carroll, Brett | OF | WSH | PIT | 2/25/13 | Minor league contract | |
| 7. | Olsen, Scott | SP | WSH | PIT | 12/10/10 | One year with a club option for 2012 | |
| 8. | Cora, Alex | 3B | WSH | STL | 2/06/12 | Minor league contract | |
| 9. | Accardo, Jeremy | RP | OAK | WSH | 2/05/13 | Minor league contract | |
| 10. | Aubrey, Michael | 1B | BAL | WSH | 12/20/10 | Minor league contract | |
| 11. | Bisenius, Joe | RP | WSH | WSH | 12/20/10 | Minor league contract | |
| 12. | Duke, Zach | RP | WSH | WSH | 12/06/12 | One-year contract | |
| 13. | LaRoche, Adam | 1B | WSH | WSH | 1/08/13 | Two years with a mutual option for 2015 | |
| 14. | Maldonado, Carlos | C | WSH | WSH | 10/24/12 | Minor league contract | |
| 15. | Meredith, Cla | RP | BAL | WSH | 2/02/11 | Minor league contract | |
| 16. | Ohman, Will | RP | CIN | WSH | 2/11/13 | Minor league contract | |
| 17. | Romero, J.C. | RP | BAL | WSH | 3/22/13 | Minor league contract | |
| 18. | Soriano, Rafael | RP | NYY | WSH | 1/17/13 | Two years with a vesting option for 2015 | |
| 19. | Van Every, Jonathan | CF | BOS | WSH | 12/10/10 | Minor league contract | |
| 20. | Werth, Jayson | OF | PHI | WSH | 12/05/10 | Seven-year deal | |
| 21. | Young, Chris | SP | NYM | WSH | 2/21/13 | Minor league contract | |
| 22. | Burke, Jamie | C | WSH | --- | --- | Minor league free agent | |
| 23. | English, Jesse | RP | WSH | --- | --- | Minor league free agent | |
| 24. | Mench, Kevin | OF | WSH | --- | --- | --- | |
| 25. | Stairs, Matt | 1B | WSH | --- | --- | Retired | |
| 26. | Walker, Tyler | RP | WSH | --- | --- | Released | |
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