Cognomen Siboro (Siboro 
) , all around the world, is quite a common last name. The last name Siboro is habitual in South-eastern Asia, particularly Indonesia, where it is quite a rare surname, and Malaysia, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Siboro | United States, Nigeria, Malaysia, Indonesia |
| rotua effendi siboro Indonesian politician (born 1951 in Samosir), ID (b. 1951) |
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| abdul siboro ID (b. 1960) |
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| konstantin siboro ID (b. 1966) |
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