Petar (Bulgarian: Петър, Sr-cyrl: Петар) is a South Slavic masculine given name, their variant of the Biblical name Petros[1] cognate to Peter.
Derivative forms include Pero, Pejo, Pera, Perica, Petrica, Periša. Feminine equivalent is Petra.
People mononymously known as Petar include:
- Petar of Serbia (c. 870 – 917), early Prince of the Serbs
- Petar of Duklja (fl.), early archont in Dioclea
- Petar Krešimir (died 1074/1075), King of Croatia and Dalmatia
- Petar Delyan (r. 1040-1041), Bulgarian rebel, declared Emperor of Bulgaria
Notable people with the name are numerous: