Family name بوساك (Bosak 
, Boesak 
, Boussac 
) , in the world, is a common surname. The family name بوساك is habitual in Croatia, where it is quite a common surname, Slovakia, and Czechia, where it is quite a rare surname. Not in comparison with a country's population, it is commonest in India, the United States, and Poland. Very seldom, بوساك is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Bosak | Poland, France, India, South Africa, United States |
| Boesak | United Kingdom, South Africa, United States |
| Boussac | Brazil, France, United Kingdom, Mexico, United States |
| بوساك | Iran |