Surname Piunov (Пиунов 
, Piunov 
) , in all the world, is a rare last name. The surname Piunov is characteristic of Estonia, where it is a rare surname, Russia, and Kazakhstan. Measured by absolute frequency, this name is the most popular in Russia, Kazakhstan, and Kyrgyzstan.
| VARIANT | COUNTRY |
|---|---|
| Пиунов | Kazakhstan, Russia, Kyrgyzstan |
| Piunov | Russia, Estonia, Canada, United States |
| oleg piunov (b. 1993) |
|