The Roman Catholic Diocese of Saint John’s—Basseterre (Latin: Dioecesis Sancti Ioannis Imatellurana) is a diocese of the Latin Rite of the Roman Catholic Church in the Caribbean. The diocese encompasses the islands of Antigua and Barbuda Saint Kitts and Nevis Montserrat Anguilla and the British Virgin Islands. The diocese is a suffragan of the Archdiocese of Castries and a member of the Antilles Episcopal Conference.