Cognomen Дехтярёв (Дехтярёв 
) , all around the world, is a very rare surname. The cognomen Дехтярёв is characteristic of Belarus, where it is a rare surname, Kazakhstan, where it is a very rare surname, and Ukraine. Measured by absolute frequency, it is commonest in Belarus, Kazakhstan, and Russia.
| VARIANT | COUNTRY |
|---|---|
| Дехтярёв | Kazakhstan, Russia, Ukraine, Belarus |
Dehtyarev, Dehtyaryov, Dekhtyarev, and Dekhtyaryov