Gramercy is a town in St. James Parish, Louisiana, United States. The population was 3,066 at the 2000 census.
Gramercy was originally an Indian and French settlement and trading post. In 1739, much of the area which is now known as Gramercy was sold to Joseph Delille Dupart, Commissioner of Indian Nations under Jean-Baptiste Le Moyne de Bienville. The town was incorporated in November 1947.
Gramercy is located at 30°3′14″N 90°41′21″W / 30.05389°N 90.68917°W / 30.05389; -90.68917 (30.053907, -90.689154).