Cognomen Cof (Cof 
, Koff 
) , throughout the world, is quite a rare surname. The family name Cof is habitual in Slovenia, where it is quite a rare surname, Estonia, and Netherlands. Measured by absolute frequency, this name is the most popular in the United States, Ivory Coast, and Turkey. Much less frequently, Cof is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Cof | United States, Slovenia, South Africa, Turkey, Myanmar |
| Koff | Brazil, Netherlands, United States, Ivory Coast, South Africa |
|
emil cof AR (b. 1912) |
|
| ivan cof SI (b. 1921) |
|
|
|
blaž cof Slovene canoeist, SI (b. 1991) |
|
| darja cof SI |
|
|
| alenka cof SI |
|