Last name Ojak (Ojak 
) , throughout the world, is a rare cognomen. The last name Ojak is habitual in Indonesia, where it is a rare surname, Poland, where it is a very rare surname, and Georgia. Not in comparison with a country's population, this name is the most popular in Indonesia, Poland, and Germany. More prevalently, Ojak is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Ojak | Malaysia, India, Poland, Indonesia, Germany |
| helena ojak Polish Righteous Among the Nations, PL (b. 1921) |
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| józef ojak Polish Righteous Among the Nations, PL |
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| franciszek ojak PL |
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| tekla ojak PL |
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