Family name อูนากูล (Unakul 
, อูนากูล ) , around the world, is a rare cognomen. The cognomen อูนากูล is characteristic of Thailand, where it is a rare surname, New Zealand, where it is a very rare surname, and Malaysia, where it is an extremely rare surname. Not in comparison with a country's population, this name is the most popular in Thailand, China, and Malaysia. Much less frequently, อูนากูล is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Unakul | Thailand, New Zealand, United States, Malaysia, China |
| อูนากูล | Thailand |
| จันทนีย์ อูนากูล Thai singer, TH (b. 1957) |
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| รุ้งเฑียร อูนากูล Thai singer, TH (b. 1984) |
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