Last name Birek (Birek 
) , all around the world, is a rare surname. The surname Birek is habitual in Croatia, where it is quite a rare surname, Poland, where it is a rare surname, and Austria. Measured by absolute frequency, it is commonest in Poland, Croatia, and the United States. Likewise, Birek is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Birek | Malaysia, Poland, United States, Croatia, Morocco |
|
wojciech birek Polish translator and writer, PL (b. 1961) |
|
| birek lászló RO (b. 1918) |
|
|
| jacek birek Polish sportsperson and athletics competitor, PL (b. 1960) |
|
|
| konrad birek PL (b. 1981) |
|