Roster y Personal de los Nationals
Transacciones
| Fecha | Transacción |
| 08/09/26 | Washington Nationals llamado RHP Jake Bird de Rochester Red Wings. |
| 08/09/26 | Washington Nationals opcionado LHP Carson Palmquist a Rochester Red Wings. |
| 08/08/26 | Washington Nationals envian a LHP DJ Herz una asignación de rehabilitación a Fredericksburg Nationals. |
| 08/07/26 | Washington Nationals liberan a RHP Zack Littell. |
| 08/07/26 | Washington Nationals opcionado RHP Wyatt Mills a Rochester Red Wings. |
| 08/06/26 | Washington Nationals reclamado RHP Wyatt Mills fuera de waivers de Los Angeles Dodgers. |
| 08/06/26 | Washington Nationals opcionado RHP Wyatt Mills a Rochester Red Wings. |
| 08/05/26 | Washington Nationals liberan a RF Joey Wiemer. |
| 08/05/26 | Washington Nationals activan a RHP Brad Lord de la 15-día lista de lesionados. |
| 08/05/26 | Washington Nationals designado RHP Zack Littell para la asignación. |
| 08/04/26 | Washington Nationals agente libre firmado LHP Matt Krook con un contrato de la ligas menores. |
| 08/04/26 | Washington Nationals ponen a RF James Wood en la 10-día lista de lesionados. Left oblique strain. |
| 08/04/26 | Washington Nationals seleccionado el contrato de LF Andrew Pinckney de Rochester Red Wings. |
| 08/04/26 | Washington Nationals opcionado RHP Eddy Yean a Rochester Red Wings. |
| 08/03/26 | Washington Nationals activan a LHP Will Dion. |
| 08/03/26 | Washington Nationals activan a RHP Yovanny Cruz. |
| 08/03/26 | Washington Nationals llamado 1B Abimelec Ortiz de Rochester Red Wings. |
| 08/03/26 | Washington Nationals cambian a 1B Luis García Jr. a New York Yankees por RHP Ben Grable, RHP Yovanny Cruz, RHP Jack Cebert y RHP Jake Bird. |
| 08/03/26 | Washington Nationals cambian a 1B Luis García Jr. a New York Yankees por RHP Ben Grable, RHP Yovanny Cruz, RHP Jack Cebert y RHP Jake Bird. |
| 08/03/26 | Washington Nationals cambian a 1B Luis García Jr. a New York Yankees por RHP Ben Grable, RHP Yovanny Cruz, RHP Jack Cebert y RHP Jake Bird. |
| 08/03/26 | Washington Nationals cambian a LF Christian Franklin a Baltimore Orioles por RHP Joe Glassey. |
| 08/03/26 | Washington Nationals cambian a 1B Luis García Jr. a New York Yankees por RHP Ben Grable, RHP Yovanny Cruz, RHP Jack Cebert y RHP Jake Bird. |
| 08/03/26 | Washington Nationals cambian a 1B Luis García Jr. a New York Yankees por RHP Ben Grable, RHP Yovanny Cruz, RHP Jack Cebert y RHP Jake Bird. |
| 08/03/26 | Washington Nationals cambian a LHP Foster Griffin a Cleveland Guardians por LHP Will Dion, LHP Josh Hartle, OF Nick Mitchell y RHP Kendeglys Virguez. |
| 08/03/26 | Washington Nationals cambian a LHP Foster Griffin a Cleveland Guardians por LHP Will Dion, LHP Josh Hartle, OF Nick Mitchell y RHP Kendeglys Virguez. |
| 08/03/26 | Washington Nationals cambian a LHP Foster Griffin a Cleveland Guardians por LHP Will Dion, LHP Josh Hartle, OF Nick Mitchell y RHP Kendeglys Virguez. |
| 08/03/26 | Washington Nationals cambian a LHP Foster Griffin a Cleveland Guardians por LHP Will Dion, LHP Josh Hartle, OF Nick Mitchell y RHP Kendeglys Virguez. |
| 08/03/26 | Washington Nationals cambian a LHP Foster Griffin a Cleveland Guardians por LHP Will Dion, LHP Josh Hartle, OF Nick Mitchell y RHP Kendeglys Virguez. |
| 08/03/26 | Washington Nationals opcionado RHP Riley Cornelio a Rochester Red Wings. |
| 08/03/26 | Washington Nationals llamado LHP Andrew Alvarez de Rochester Red Wings. |
| 08/03/26 | Washington Nationals opcionado RHP Jake Bird a Rochester Red Wings. |
| 08/03/26 | Washington Nationals cambian a LF Christian Franklin a Baltimore Orioles por RHP Joe Glassey. |
| 08/02/26 | Washington Nationals transfirió LHP PJ Poulin de la 15-día lista de lesionados a la 60-día lista de lesionados. Left flexor strain. |
| 08/01/26 | Washington Nationals envian a RHP Brad Lord una asignación de rehabilitación a Rochester Red Wings. |