Family name فاك (Fak 
, فاك 
, Vack 
) , all over the world, is quite a rare last name. The surname فاك is characteristic of Croatia, where it is quite a rare surname, Guinea-Bissau, and Malaysia. Measured by absolute frequency, this name is the most popular in Malaysia, Turkey, and Morocco. Also, فاك is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Fak | Malaysia, India, Morocco, Poland, Turkey |
| فاك | Sudan, Morocco |
| Vack | Germany, Guatemala, China, Brazil, United States |