Petya is a Bulgarian female given name of Slavic origin. It is also a Russian diminutive name derived from the male given name Pyotr.
Petya may also refer to:
Petya (malware), a family of encrypting ransomware discovered in 2016 Petya-class frigate, the NATO reporting name for a class of light frigates designed in the 1950s and built for the Soviet Navy
People Petya Barakova (born 1994), Bulgarian volleyball player Petya Dubarova (1962–1979), Bulgarian poet Petya Gavazova (born 1968), Bulgarian figure skater Petya Lukanova (born 1969), Bulgarian sports shooter Petya Lyuty (died 1919), Ukrainian military commander Petya Minkova, Bulgarian cyclist Petya Nedelcheva (born 1983), Bulgarian badminton player Petya Parvanova (born 1960), Bulgarian security officer and politician Petya Pendareva (1971–2025), Bulgarian sprinter Petya Petkova (born 1991), Bulgarian footballer Petya Strashilova (born 1965), Bulgarian middle-distance runner Petya Tsekova (born 1986), Bulgarian volleyball player
Fictional characters Petya Rostov, character in Leo Tolstoy's War and Peace
See also Petia (disambiguation) Pyotr