Nationals Roster & Staff
Transactions
| Date | Transaction |
| 04/30/23 | Washington Nationals designated LHP Anthony Banda for assignment. |
| 04/30/23 | Washington Nationals signed free agent RHP Tyler Danish to a minor league contract. |
| 04/30/23 | Washington Nationals placed RHP Chad Kuhl on the 15-day injured list. Right foot metatarsalgia. |
| 04/30/23 | Washington Nationals optioned RHP Jordan Weems to Rochester Red Wings. |
| 04/30/23 | Washington Nationals selected the contract of RHP Andrés Machado from Rochester Red Wings. |
| 04/29/23 | Washington Nationals recalled RHP Jordan Weems from Rochester Red Wings. |
| 04/27/23 | Washington Nationals sent 2B Ildemaro Vargas on a rehab assignment to Rochester Red Wings. |
| 04/14/23 | Washington Nationals signed free agent IF Eyeksson Rojas to a minor league contract. |
| 04/14/23 | Washington Nationals signed free agent IF Luis Arias to a minor league contract. |
| 04/14/23 | Washington Nationals signed free agent LHP Raymond Mariano to a minor league contract. |
| 04/14/23 | Washington Nationals signed free agent LHP Jeffrey Familia to a minor league contract. |
| 04/14/23 | Washington Nationals signed free agent RF Nomar Mazara to a minor league contract. |
| 04/14/23 | Washington Nationals signed free agent SS Richie Martin to a minor league contract. |
| 04/14/23 | Washington Nationals signed free agent CF Dashyll Tejeda to a minor league contract. |
| 04/11/23 | Washington Nationals recalled SS Jeter Downs, and from Rochester Red Wings. |
| 04/10/23 | Washington Nationals placed 2B Ildemaro Vargas on the 10-day injured list. Left shoulder strain. |
| 04/03/23 | Washington Nationals signed free agent C Kevin Plawecki to a minor league contract. |
| 04/02/23 | Washington Nationals placed LF Corey Dickerson on the 10-day injured list. Left calf strain. |
| 04/02/23 | Washington Nationals recalled CF Stone Garrett, and from Rochester Red Wings. |