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 | Latvia, New Zealand, Mexico, Germany, Russia |
| Каретина | Kazakhstan, Belarus, Kyrgyzstan, Russia, Ukraine |