Cognomen กอฟฟ์ (Kop 
, กอฟฟ์ 
) , across the world, is quite a common family name. The cognomen กอฟฟ์ is characteristic of Netherlands, where it is quite a rare surname, Slovenia, and Papua New Guinea. Not in comparison with a country's population, it is commonest in Turkey, Netherlands, and Myanmar. Much less frequently, กอฟฟ์ is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Kop | Netherlands, Turkey, Indonesia, Myanmar, Taiwan |
| กอฟฟ์ | Thailand |