Surname Петро-Степан (Петро-Степан 
) , in all the world, is an extremely rare cognomen. Much more prevalently, Петро-Степан is the forename as well as the last name. Parts of the name also exists independently as a first name Петро, and a first name Степан.
| VARIANT | COUNTRY |
|---|---|
| Петро-Степан | Ukraine |