Family name มุทิตากุล (มุทิตากุล 
, Muthukun , Muthikul 
) , worldwide, is a very rare last name. The cognomen มุทิตากุล is habitual in Thailand, where it is a very rare surname, and the United States, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Muthukun, มุทิตากุล | Thailand |
| Muthikul | United States, Thailand |