Throughout the world, Tambunan (Tambunan 
) is a rare epicene forename. The given name Tambunan is characteristic of South-eastern Asia, particularly Indonesia, where it is a rare unisex name. Much more frequently, Tambunan is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Tambunan | Malaysia, Japan, Indonesia, Philippines, United States |
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ashari tambunan Indonesian politician, ID (b. 1956) |
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| saut poltak tambunan Indonesian artist, ID (b. 1952) |
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| amri tambunan ID (b. 1949) |
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| ali tambunan Indonesian politician (born 1960), ID (b. 1960) |
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| yannes tambunan Indonesian politician (born 1965 in Medan), ID (b. 1965) |
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| pondang tambunan ID (b. 1958) |
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| bachtiar h tambunan ID (b. 1958) |
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| nurazizah tambunan Indonesian politician (born 1973 in Medan), ID (b. 1973) |
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| kores tambunan Indonesian politician, ID |
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| marthin renthami tambunan Indonesian political candidate, ID |
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| ahmad sanoesi tambunan Indonesian political candidate, ID |
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| ramly tambunan Indonesian political candidate, ID |
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| reinhart parmonangan tambunan Indonesian political candidate, ID |
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| oberlin charles ch tambunan Indonesian political candidate, ID |
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| dendi tambunan ID |
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