Family name كوليس (Collis 
, Cowles , Colles ) , all around the world, is a common last name. The family name كوليس is characteristic of Saint Vincent and the Grenadines, where it is quite a common surname, Antigua and Barbuda, and Malta. Measured by absolute frequency, it most frequently occurs in the United States, the United Kingdom, and Australia. Much less frequently, كوليس is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Collis, Colles, Cowles | Australia, Canada, New Zealand, United Kingdom, United States |