The Mafolie Great House, in Mafolie in the Northside subdistrict north of Charlotte Amalie in St. Thomas, U.S. Virgin Islands, was built in 1795. The estate was originally part of Estate Catherineberg sugar plantation, but was sold to Captain Sonderburg in 1962. It was listed on the National Register of Historic Places in 1978. The listing included three contributing buildings and a contributing structure.