| 3rd Manchurian Army | |
|---|---|
 | |
| Active | December 1904 – February 1906 |
| Country |  Russian Empire |
| Type | Army |
| Engagements | Russo-Japanese War |
| Commanders | |
| Notable commanders | See list |
The 3rd Manchurian Army (Russian: 3-й Маньчжурская армия / 3 МА) was a field army of the Russian Empire that was established in 1904 during the Russo-Japanese War, to operate in Manchuria against Japan. It was one of the three such armies that were created and was disbanded in February 1906.