Cognomen Kouptsov (Купцов 
, Kouptsov 
) , around the world, is a common surname. The surname Kouptsov is characteristic of Eastern Europe, particularly Belarus, where it is quite a common surname, Russia, and Ukraine, where it is quite a rare surname.
| VARIANT | COUNTRY |
|---|---|
| Купцов | Kazakhstan, Russia, Kyrgyzstan, Belarus, Ukraine |
| Kouptsov | Canada, United States |