Cognomen Stefek (Stefek 
, Štefek ) , all over the world, is quite a rare surname. The family name Stefek is characteristic of Czechia, where it is quite a common surname, Slovakia, where it is quite a rare surname, and Croatia. Very seldom, Stefek is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Stefek | Czechia, Poland, Slovakia, United States, Croatia |
| Štefek | United States, Czechia, Slovakia, Croatia |
| axel stefek (b. 1967) |
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| heather a stefek researcher (ORCID 0000-0002-0991-9836) |
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| milan stefek researcher |
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| manfred stefek Dr. rer. nat. Technische Universität Bergakademie Freiberg 1984 |
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