Lewis Tappan Barney | |
|---|---|
 Col. Lewis T. Barney | |
| Born | March 18, 1844 Brooklyn, New York |
| Died | December 19, 1904 (aged 60) Inglewood, California |
| Buried | Rosedale Cemetery, Los Angeles, California |
| Allegiance | United States of America Union |
| Service/ | United States Army Union Army |
| Years of service | 1862–1865 |
| Rank |  Captain Colonel (temporary) Brevet Major General |
| Unit | 7th New York Militia Regiment 68th New York Infantry Regiment |
| Commands | 180th New York Infantry Regiment (temporary) |
| Battles/wars | American Civil War |
| Spouse(s) | Mary S. Fowler |
| Relations | Hiram Barney (father) |
Lewis Tappan Barney (March 18, 1844 – December 19, 1904) was an officer in the Union Army during the American Civil War. Born in 1844 he became the youngest man brevetted to brigadier general and major general in the war.