Petlovac (Hungarian: Baranyaszentistván, German: Sanktivan, Serbian Cyrillic: Петловац)[3] is a village and municipality in the western part of Baranja, which comprise the northern part of Osijek-Baranja County in Croatia.

Petlovac is underdeveloped municipality which is statistically classified as the First Category Area of Special State Concern by the Government of Croatia.

[4] Until the end of World War II, the majority of the inhabitants was Danube Swabian, also called locally as Stifolder, because their ancestors arrived in the 17th and 18th centuries from Fulda (district).

During Hungarian rule, it was called Sent Ištvan (Saint Stephen), and German settlers named it Blumendorf, which means Village of Flowers.

The municipality of Petlovac include following settlements: Directly elected minority councils and representatives are tasked with consulting tasks for the local or regional authorities in which they are advocating for minority rights and interests, integration into public life and participation in the management of local affairs.