Last name Olak (Olak 
) , around the world, is quite a rare family name. The surname Olak is habitual in Poland, where it is quite a rare surname, Estonia, and Turkey, where it is a rare surname. Measured by absolute frequency, it most frequently occurs in Poland, Turkey, and Kenya. Likewise, Olak is the forename as well as the last name.
| paul olak Estonian journalist, dramaturgist (1880-1949) (b. 1880) |
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| wacław olak Polish politician and deputy, PL (b. 1927) |
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| herma olak Estonian agrotechnologist (1938-2014), EE (b. 1938) |
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| doris olak German rower, DE (b. 1950) |
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| jana olak Estonian medical scientist, EE (b. 1966) |
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