Surname Petryga (Petryga 
, Петрига 
) , in all the world, is a rare last name. The family name Petryga is habitual in Eastern Europe, particularly Ukraine, where it is a rare surname, Belarus, and Russia. Measured by absolute frequency, it is the most numerous in Eastern Europe, particularly Ukraine, Russia, and Poland. Much less frequently, Petryga is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Petryga | Canada, Russia, Germany, Poland, New Zealand |
| Петрига | Russia, Belarus, Ukraine, Kazakhstan |