| Caesar Carpentier Antoine | |
| Office: | 13th Lieutenant Governor of Louisiana |
| Term Start: | May 22, 1873 |
| Term End: | April 24, 1877 |
| Governor: | William P. Kellogg Stephen B. Packard |
| Preceded: | P.B.S. Pinchback |
| Succeeded: | Louis A. Wiltz |
| Office2: | Louisiana State Senator from Caddo Parish |
| Term Start2: | 1868 |
| Term End2: | 1872 |
| Birth Place: | New Orleans, Louisiana, U.S. |
| Birth Date: | c. 1836 |
| Death Place: | Shreveport, Louisiana, U.S. |
| Resting Place: | New Bethlehem Baptist Church Cemetery |
| Party: | Republican |
| Occupation: | Barber, Editor, Businessman |
| Allegiance: | United States of America |
| Branch: | Union Army |
| Unit: | 7th Louisiana (Colored) Infantry Regiment |
| Battles: | American Civil War |
| Rank: | Captain |
| Relations: | Felix C. Antoine (brother) |
Caesar Carpentier Antoine (c. 1836–1921) was a soldier, businessman, editor, and African-American Republican politician in Louisiana during the Reconstruction era.[1]
He was born as a free man of color in New Orleans. His brother was Felix C. Antoine.[2]
During the Civil War, he served as Captain in the 7th Louisiana Regiment Infantry and 10th U.S. Colored Heavy Artillery Regiment.[3] After the war, he moved to Shreveport, Louisiana. He was a member of St. Paul's Colored Methodist Episcopal Church and lived in the Allendale neighborhood.
He was elected as a state senator for Caddo Parish in 1868, partaking in the Louisiana Constitutional Convention. He served until 1872 when he was elected to serve as Lieutenant Governor of Louisiana, the third man of color to hold that position. He co-founded a newspaper with P. B. S. Pinchback, his immediate predecessor.
He became a Worshipful Master in 1884. Shreveport's Freeman Lodge Number 185 of the Price Hall Masons is named in his honor.
In 1887, he co-founded Comité des Citoyens, which fought the case that became Plessy v. Ferguson, and became its vice-president.