Supetar (Croatian pronunciation: [sǔpetar]) is a town on the northern part of the Dalmatian island of Brač, in the Split-Dalmatia County, in Croatia.

The present settlement of Supetar was founded in the 16th century when people living in Nerežišća, about 8 kilometres (5 miles) inland, began to use it as their harbour.

The town's main period of development occurred during the 18th and 19th centuries when Supetar took over from Nerežišća as the administrative centre of the island of Brač.

[4] The Parish church of St. Peter (Sveti Petar) stands on the side of an old chapel which was restored in 1773 in a Baroque architectural style.

Supetar graveyard beside the Chapel St. Nicholas (Sveti Nikola Putnik) there are two old Christian sarcophagi and several gravestones (Pieta), which are the work of Ivan Rendić of Supetar (1849–1932), and the mausoleum of the Petrinović family with portraits and sculptures, by the sculptor Toma Rosandić (1878–1958).