Last name Козинетц (Козинетц 
, Kozinets 
) , around the world, is a rare cognomen. The surname Козинетц is characteristic of Estonia, where it is a rare surname, Belarus, and Russia, where it is a very rare surname. Not in comparison with a country's population, this name is the most popular in Russia, Belarus, and the United States.
| VARIANT | COUNTRY |
|---|---|
| Козинетц | Russia |
| Kozinets | Russia, Estonia, Belarus, United States, Ukraine |