Estate Catherineberg is a historic mansion on Denmark Hill in Charlotte Amalie, on Saint Thomas island, in the territory of the United States Virgin Islands. It is owned by the Virgin Islands territorial government and previously served as a residence for the governor of the U.S. Virgin Islands. The last governor to reside there was Charles Turnbull. After several years of vacancy, the territory's government announced in 2017 that the historic building would be opened to the public as a museum.