Antoine Laumet de La Mothe, sieur de Cadillac, French-American explorer and politician, 3rd French Governor of Louisiana (born 1658)

Antoine de la Mothe, sieur de Cadillac, born Antoine Laumet, was a French explorer and adventurer in New France, which stretched from Eastern Canada to Louisiana on the Gulf of Mexico. He rose from a modest beginning in Acadia in 1683 as an explorer, trapper, and a trader of alcohol and furs, achieving various positions of political importance in the colony. He was the commander of Fort de Buade in St. Ignace, Michigan, in 1694. In 1701, he founded Fort Pontchartrain du Détroit ; he was commandant of the fort until 1710. Between 1710 and 1716, he was the governor of Louisiana, although he did not arrive in that territory until 1713.

This is a list of the colonial governors of Louisiana, from the founding of the first settlement by the French in 1699 to the territory's acquisition by the United States in 1803.