Cognomen Кокер (Coker 
, Cocker 
, Koker 
) , across the world, is a common family name. The cognomen Кокер is habitual in Sierra Leone, where it is quite a common surname, Gambia, and Jersey (explore the name in all countries). In absolute terms, this name is the most popular in the United States, Nigeria, and the United Kingdom. Very seldom, Кокер is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Coker | United Kingdom, United States, Nigeria, Sierra Leone, Indonesia |
| Cocker | Kenya, United Kingdom, United States, Nigeria, Indonesia |
| Koker | United Kingdom, Australia, United States, Nigeria, Sierra Leone |
| Кокер | Kazakhstan, Ukraine, Russia |