Thomas Devin
| Thomas Casimer Devin | |
|---|---|
| Gen. T.C. Devin | |
| Nickname(s) | Buford's Hard Hitter | 
| Born | December 10, 1822 New York City, US | 
| Died | April 4, 1878 (aged 55) New York City, US | 
| Place of burial | |
| Allegiance | United States Union | 
| Branch | United States Army Union Army | 
| Years of service | 1861–1878 | 
| Rank | Brigadier General Brevet Major General | 
| Commands | 6th New York Cavalry 2nd Bde, 1st Div, Cav Corps 1st Division, Cavalry Corps 3rd U.S. Cavalry | 
| Battles / wars | |
Thomas Casimer Devin (December 10, 1822 – April 4, 1878) was a United States Army officer and general. He commanded Union cavalry during the American Civil War and during the Indian Wars.