Jean-Baptiste du Casse (2 August 1646 – 25 June 1715) was a French privateer, admiral, and colonial administrator who served throughout the Atlantic World during the 17th and 18th centuries. Likely born 2 August 1646 in Saubusse, near Pau (Béarn), to a Huguenot family, du Casse joined the French merchant marine and served in the East India Company and the slave-trading Compagnie du Sénégal. Later, he joined the French Navy and took part in several victorious expeditions during the War of the League of Augsburg in the West Indies and Spanish South America. During the War of the Spanish Succession, he participated in several key naval battles, including the Battle of Málaga and the siege of Barcelona. For his service, he was made a knight of the Order of the Golden Fleece by King Philip V of Spain. In the midst of these wars, he was Governor of the colony of Saint-Domingue from 1691-1703. He ended his military career at the rank of Lieutenant General of the naval forces (the highest naval military rank at the time in France, equivalent of a modern vice-admiral) and Commander of the Royal and Military Order of Saint Louis. He died on 25 June 1715 in Bourbon-l'Archambault, Auvergne.