Surname Петакчян (Петакчян 
, Petakchian 
) , all over the world, is a rare last name. The surname Петакчян is habitual in Russia, where it is a very rare surname, Georgia, and Ukraine, where it is an extremely rare surname. Likewise, Петакчян is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Петакчян | Ukraine, Russia, Armenia |
| Petakchian | Georgia |