Petrovac is a coastal town in Montenegro, within the Budva municipality.
Petrovac is located on the coast between Budva and Bar, where the old mountain road from Podgorica reaches the coast. It has a 600 metre long sandy beach and it is a popular tourist destination.
The history of Petrovac began in Roman times, when a couple of villas were built at Krš Medinski: a 4th century mosaic floor, remains of a villa and baths have been found behind St Ilija's church.Later, there was a Slav village. The village was first mentioned in the Chronicle of the Priest of Duklja. At the northern end of the bay is a 16th century Venetian fortress, Kastel Lastva, built to discourage pirates. The name, Petrovac, was given at the beginning of the 20th century after King Peter I Karađorđević.
In the bay are two islets (Katič and Sveta Nedjelja), one of which is topped by a small chapel, built in thanksgiving for a shipwrecked sailor's life.