Globally, Петрия (Petria 
, Петрия 
) is quite a rare primarily girly, but very seldom masculine first name. The first name Петрия is characteristic of Bulgaria, where it is quite a common female name, Romania, where it is quite a rare dominantly female, but infrequently masculine name, and Australia, where it is a rare girly name. In absolute terms, it is the most numerous in Bulgaria, Romania, and Indonesia. Likewise, Петрия is the last name as well as the forename.