Espetacion Barrera
- Birthplace: Mexico
- Service Years: Feb 8, 1878 – Apr 24, 1879; Apr 25, 1879 – May 11, 1880; May 30, 1880 – Jun 6, 1881
- Rank: Private
- Station: Fort Clark
- Unit Commander: Currently unknown
Espetacion Barrera served three enlistments totaling just over three years as a Private at Fort Clark. He stood 5′7″ with hazel eyes, black hair, and a copper complexion The 1880 census lists him as a 21‑year‑old white male, married to Elsa, a 19‑year‑old Black woman born in Mexico