The Danish West Indies or Danish Virgin Islands or Danish Antilles were a Danish colony in the Caribbean, consisting of the islands of Saint Thomas with 32 square miles (83 km2); Saint John with 19 square miles (49 km2); and Saint Croix with 84 square miles (220 km2). The islands have belonged to the United States as the Virgin Islands since they were purchased in 1917. Water Island was part of the Danish West Indies until 1905, when the Danish state sold it to the East Asiatic Company, a private shipping company.

Saint Thomas is one of the Virgin Islands in the Caribbean Sea, and a constituent district of the United States Virgin Islands (USVI), an unincorporated territory of the United States. Along with surrounding minor islands, it is one of three county-equivalents in the USVI. Together with Saint John, it forms one of the districts of the USVI. The territorial capital and port of Charlotte Amalie is located on the island.