Cognomen Karetina (Karetina 
, Каретина 
) , globally, is quite a rare surname. The family name Karetina is characteristic of Latvia, where it is a rare surname, Russia, and Kazakhstan.
| VARIANT | COUNTRY |
|---|---|
| Karetina | Germany, Russia, Mexico, Latvia, New Zealand |
| Каретина | Kazakhstan, Russia, Kyrgyzstan, Belarus, Ukraine |