Situmorang is one of Toba Batak clans originating in North Sumatra, Indonesia. People of this clan bear the clan's name as their surname. Notable people of this clan include: Fiwi Dwipan Situmorang (born 1995), Indonesian footballer Martinus Dogma Situmorang (1946 - 2019), Indonesian Roman Catholic Bishop Sitor Situmorang (1924–2014), Indonesian poet, essayist and writer Sodjuangon Situmorang (born 1949), Indonesian bureaucrat