| Konstantin Neumann | |
| Birth Date: | January 28, 1897 |
| Birth Place: | Mitau, Russian Empire |
| Death Date: | November 5, 1937 |
| Allegiance: | Russian Empire Soviet Union |
| Branch: | Imperial Russian Army Soviet Red Army |
| Rank: | Komkor |
| Serviceyears: | 1918–1937 (Soviet Union) |
| Commands: | 35th Rifle Division |
| Battles: | World War I Russian Civil War |
Konstantin Avgustovich Neumann (Russian: Константин Августович Нейман; January 28, 1897 – November 5, 1937) was born in what is now Jelgava, Latvia.
He led the 35th Rifle Division during the Soviet occupation of Mongolia.
He was a recipient of the Order of Lenin (1936) and the Order of the Red Banner.
During the Great Purge, he was arrested on July 21, 1937 and later executed.