Family name Situmorang (Situmorang 
) , in the world, is a common last name. The surname Situmorang is characteristic of South-eastern Asia, particularly Indonesia, where it is quite a common surname, Malaysia, where it is quite a rare surname, and Singapore, where it is a rare surname. In absolute terms, the name is most common in Indonesia, Malaysia, and the United States.
| VARIANT | COUNTRY |
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| Situmorang | Singapore, Malaysia, United States, Indonesia, Germany |
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sitor situmorang Indonesian poet, ID (b. 1923) |
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martinus dogma situmorang Indonesian catholic bishop (1946-2019), ID (b. 1946) |
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sodjuangon situmorang Indonesian bureaucrat, ID (b. 1950) |
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| nahum situmorang ID (b. 1908) |
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| retna r. situmorang Indonesian politician (born 1947), ID (b. 1947) |
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| edwin pamimpin situmorang Indonesian politician (born 1952 in Laguboti), ID (b. 1952) |
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| erwin tunggul setiawan situmorang Indonesian politician (born 1958), ID (b. 1958) |
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| denny situmorang Indonesian politician (born 1959), ID (b. 1959) |
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| benyamin situmorang ID (b. 1954) |
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| antonius situmorang Indonesian politician (born 1964 in Sintang), ID (b. 1964) |
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| tigor situmorang Indonesian politician (born 1967 in Banjarmasin), ID (b. 1967) |
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| thony saut situmorang (b. 1959) |
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| sudung situmorang ID (b. 1961) |
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| m.t. natalis situmorang Indonesian politician (born 1976 in Porsea), ID (b. 1976) |
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| hantor situmorang ID (b. 1967) |
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