Cognomen Terentij (Терентий 
, Terentij 
) , around the world, is a very rare family name. The cognomen Terentij is habitual in Kyrgyzstan, where it is a very rare surname, Russia, and Kazakhstan. More frequently, Terentij is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Терентий | Kazakhstan, Belarus, Kyrgyzstan, Russia, Ukraine |
| Terentij | United States, Lithuania |