Étienne de Flacourt was a French governor of Madagascar, born at Orléans in 1607. He was named governor of Madagascar by the French East India Company in 1648.
Flacourt restored order among the French soldiers, who had mutinied. In his dealings with the Malagasy, he was less successful; he was continually harassed by their intrigues and attacks during his entire term of office.
In 1655 he returned to France and, not long after, he was appointed director general of the company; after again returning to Madagascar, he drowned on his voyage home on the 10th of June 1660. He is the author of a Histoire de la grande isle de Madagascar.
Flacourt was one of the few, if not the only, Westerners to have recorded knowledge of the elephant birds of Madagascar when they were possibly still extant.
Flacourtia, a genus of flowering plants in the willow family, Salicaceae, was named in his honor.