Surname Untoro (Untoro 
) , in the entire world, is quite a common last name. The surname Untoro is habitual in Indonesia, where it is quite a rare surname, Malaysia, where it is a very rare surname, and China, where it is an extremely rare surname. Very seldom, Untoro is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Untoro | China, Indonesia, Malaysia, Nigeria, United States |
| ons untoro Indonesian artist, ID (b. 1959) |
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| untoro raja bulan Indonesian politician (born 1970 in Jogyakarta), ID (b. 1970) |
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| ugo untoro ID (b. 1970) |
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