Worldwide, كوسوف (Kosov 
, Kossof 
, Kossoff 
) is a very rare unisex first name. The forename كوسوف is habitual in Eastern Asia, particularly China, where it is an extremely rare boy's name. Predominantly, كوسوف is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Kosov | Russia, United Kingdom, Bulgaria, United States, Albania |
| Kossof | New Zealand, United States, Philippines |
| Kossoff | United Kingdom, Australia, United States, Canada, France |