Cognomen Mejak (Mejak 
) , all over the world, is a rare surname. The family name Mejak is characteristic of Slovenia, where it is quite a rare surname, Croatia, and Australia, where it is a rare surname. In absolute terms, it is commonest in Indonesia, Slovenia, and Croatia. Very seldom, Mejak is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Mejak | Indonesia, Croatia, United States, India, Slovenia |
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mitja mejak (b. 1926) |
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| ina mejak Austrian writer, AT (b. 1886) |
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miran mejak SI (b. 1927) |
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| rudolf mejak Slovene politician, IT (b. 1906) |
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| renata mejak SI |
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| danijel mejak SI |
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| george mejak SI |
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| martina mejak SI |
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