Marie Thérèse Coincoin

Marie Thérèse Coincoin, born as Coincoin (with no surname), also known as Marie Thérèse dite Coincoin, and Marie Thérèse Métoyer, (August 1742 – 1816) was a planter, slave owner, and businesswoman at the colonial Louisiana outpost of Natchitoches (later known as Natchitoches Parish).

A Louisiana Creole of color, Coincoin was born into slavery. Her freedom was purchased in 1778 by Claude Thomas Pierre Métoyer, with whom she had a long liaison and ten children. She and her descendants established the historical community of Isle Brevelle of Créoles of color along the Cane River, including what is said to be the first church founded by free people of color for their own use, St. Augustine Parish Church, Natchez, Louisiana. The church is included as a notable site on the Louisiana African American Heritage Trail.