Gustavia is the main town and capital of the island of Saint Barthélemy. Originally called Le Carénage, it was renamed in honor of King Gustav III of Sweden.

Saint Barthélemy, officially the Collectivité territoriale de Saint-Barthélemy, also known as St. Barts (English) or St. Barth (French), is an overseas collectivity of France in the Caribbean. The island lies about 30 kilometres (19 mi) southeast of the island of Saint Martin; it is northeast of the Dutch islands of Saba and Sint Eustatius, as well as north of the independent country of Saint Kitts and Nevis.