Frégate is a small (0.3 km2), uninhabited island located off the north coast of Saint-Barthélemy (17°56’24.8″N 62°50’01.5″W).
It is situated within the Réserve Naturelle de Saint-Barthélemy which was established in 1996 with the objective of conserving coral reefs, sea grass beds and marine life. It is the second north easternmost of a series of islands, and lies between Chevreau and Toc Vert.