Surname Петьр (Petr 
, Петьр , Pet'R) , in the world, is a common family name. The family name Петьр is characteristic of Czechia, where it is a common surname, Reunion, where it is quite a common surname, and Slovakia, where it is quite a rare surname. In absolute terms, it is commonest in Czechia, the United States, and China. More frequently, Петьр is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Petr | Russia, Czechia, Belarus, United States, Slovakia |
| Петьр | Russia |