Nationals Roster & Staff
Transactions
| Date | Transaction |
| 02/29/20 | Washington Nationals signed free agent RHP Allen Webster to a minor league contract. |
| 02/23/20 | IF Drew Mendoza assigned to Washington Nationals. |
| 02/23/20 | C Matt Reistetter assigned to Washington Nationals. |
| 02/23/20 | OF Cody Wilson assigned to Washington Nationals. |
| 02/22/20 | SS Jecksson Flores assigned to Washington Nationals. |
| 02/22/20 | CF Rafael Bautista assigned to Washington Nationals. |
| 02/22/20 | RHP Ronald Pena assigned to Washington Nationals. |
| 02/22/20 | RHP Frankie Bartow assigned to Washington Nationals. |
| 02/17/20 | Washington Nationals signed free agent 1B Keon Barnum to a minor league contract. |
| 02/12/20 | Washington Nationals invited non-roster RHP Jhonatan German to spring training. |
| 02/12/20 | Washington Nationals invited non-roster C Jakson Reetz to spring training. |
| 02/12/20 | Washington Nationals signed free agent LHP Sam Freeman to a minor league contract and invited him to spring training. |
| 02/12/20 | Washington Nationals signed free agent LHP Fernando Abad to a minor league contract and invited him to spring training. |
| 02/12/20 | Washington Nationals invited non-roster RHP Paolo Espino to spring training. |
| 02/12/20 | Washington Nationals signed free agent RHP David Hernandez to a minor league contract and invited him to spring training. |
| 02/12/20 | Washington Nationals signed free agent LF JB Shuck to a minor league contract and invited him to spring training. |
| 02/12/20 | Washington Nationals invited non-roster OF Yadiel Hernandez to spring training. |
| 02/12/20 | Washington Nationals signed free agent 3B Jacob Wilson to a minor league contract and invited him to spring training. |
| 02/12/20 | Washington Nationals signed free agent 1B Drew Ward to a minor league contract and invited him to spring training. |
| 02/12/20 | Washington Nationals signed free agent RHP Derek Self to a minor league contract and invited him to spring training. |
| 02/12/20 | Washington Nationals signed free agent RHP Kevin Quackenbush to a minor league contract and invited him to spring training. |
| 02/12/20 | Washington Nationals invited non-roster RHP Wil Crowe to spring training. |
| 02/12/20 | Washington Nationals signed free agent RHP Bryan Bonnell to a minor league contract and invited him to spring training. |
| 02/12/20 | Washington Nationals signed free agent RHP Dakota Bacus to a minor league contract and invited him to spring training. |
| 02/12/20 | Washington Nationals signed free agent RHP Javy Guerra to a minor league contract and invited him to spring training. |
| 02/12/20 | Washington Nationals signed free agent C Welington Castillo to a minor league contract and invited him to spring training. |
| 02/12/20 | Washington Nationals invited non-roster C Taylor Gushue to spring training. |
| 02/12/20 | Washington Nationals invited non-roster SS Luis Garcia to spring training. |
| 02/12/20 | Washington Nationals signed free agent 3B Brandon Snyder to a minor league contract and invited him to spring training. |
| 02/12/20 | Washington Nationals signed free agent OF Emilio Bonifacio to a minor league contract and invited him to spring training. |
| 02/12/20 | Washington Nationals signed free agent LF Mac Williamson to a minor league contract and invited him to spring training. |
| 02/07/20 | Washington Nationals signed free agent LHP Alberto Baldonado to a minor league contract. |