Family name Сак (Sak 
, Сак 
) , worldwide, is a common surname. The family name Сак is habitual in Turkey, where it is quite a common surname, Belarus, and Oman, where it is quite a rare surname. Measured by absolute frequency, it is the most numerous in Turkey, Poland, and Saudi Arabia. Likewise, Сак is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Sak | Bangladesh, India, Saudi Arabia, Poland, Turkey |
| Сак | Kazakhstan, Ukraine, Belarus, Armenia, Russia |
| сак, александр николаевич Soviet poet (1890-1937), BY (b. 1890) |
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| сак пантелеймон UA (b. 1905) |
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| сак юрий михайлович UA (b. 1917) |
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| сак мауленкулович мауленкулов KZ (b. 1926) |
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юлія сак UA (b. 1979) |
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| владимир трофимович сак Ukrainian association football player (1944-2001), UA (b. 1944) |
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| юрий сак Ukrainian footballer, UA (b. 1967) |
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| сак олександр олександрович UA |
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| сак вадим андрійович Ukrainian military personnel, UA (b. 1993) |
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