Surname Кормак (Cormac 
, Cormack , Кормак 
) , all over the world, is quite a common cognomen. The last name Кормак is habitual in Ireland, where it is quite a common surname, the United Kingdom, where it is quite a rare surname, and Australia. Measured by absolute frequency, this name is the most popular in the United Kingdom, the United States, and Ireland. Likewise, Кормак is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Cormac, Cormack | United Kingdom, Ireland, Canada, Australia, United States |
| Кормак | Belarus, Ukraine, Russia |