Family name Potashnikova (Поташникова 
, Potashnikova 
) , around the world, is a rare cognomen. The cognomen Potashnikova is characteristic of Russia, where it is a rare surname, Belarus, and Kazakhstan, where it is a very rare surname. Not in comparison with a country's population, it is commonest in Eastern Europe, particularly Russia, Belarus, and Ukraine.
| VARIANT | COUNTRY |
|---|---|
| Поташникова | Belarus, Ukraine, Russia, Kazakhstan |
| Potashnikova | Russia, Chile, Israel, United States |