Cognomen Mutassim (Mutassim 
) , in the world, is a rare last name. The surname Mutassim is habitual in Sudan, where it is a rare surname, and Nigeria, where it is an extremely rare surname. More prevalently, Mutassim is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Mutassim | Syria, Saudi Arabia, Egypt, Sudan, Libya |