| Thomas Sullivan | |
| Birth Date: | 1846 or 1847 |
| Birth Place: | Covington, Kentucky, US |
| Allegiance: | United States |
| Branch: | United States Army |
| Serviceyears: | 1868 – 1871 |
| Serviceyears Label: | Service years |
| Rank: | Private |
| Rank Label: | Rank |
| Unit: | 1st Cavalry Regiment |
| Awards: | Medal of Honor |
Thomas Sullivan was a United States Army soldier who was awarded the Medal of Honor for his actions at the Chiricahua Mountains.
Sullivan was born in 1846 or 1847 in Covington, Kentucky.[1] [2] He enlisted in the 1st Cavalry Regiment of the U.S. Army on June 20, 1868, in Cincinnati, Ohio; his U.S. Army enlistment record reflects an age of 21 (birth year)
On October 20, 1869, while serving with Company G, 1st Cavalry Regiment, Sullivan distinguished himself through gallantry in action against Indians concealed in a ravine on in action at Chiricahua Mountains, Arizona Territory.
Sullivan was discharged for disability on May 27, 1871, at Camp Bidwell, California.