Surname Ефремович (Ефремович 
, Efremovich 
) , worldwide, is a rare family name. The family name Ефремович is characteristic of Kazakhstan, where it is a rare surname, Israel, where it is a very rare surname, and Russia. In absolute terms, this name is the most popular in Kazakhstan, Russia, and Ukraine.
| VARIANT | COUNTRY |
|---|---|
| Ефремович | Ukraine, Russia, Kazakhstan |
| Efremovich | Israel |
| ефремович, вадим арсеньевич Russian mathematician, UA (b. 1903) |
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