Kočapar Branislavljević

thumb|Duklja and other Serbian polities in the late 11th century.

Kočapar () was the knez or župan of Duklja, a Serbian state, briefly in 1102–03 under the suzerainty of Vukan, Grand Prince of Serbia. He was the son of Branislav, the Prince of Duklja. Following Bodin's death in 1101, Bodin's half-brother Dobroslav II succeeded him as king of Doclea. Kočopar, Bodin's first cousin once removed, travelled from Dyrrhachium to Serbia, forging an alliance with Vukan. This alliance would prove worthy in their successful invasion of Duklja in 1102. The battle that ensued at the Morača led to the overthrow of Dobroslav II and the coronation of Kočapar to the throne. Dobroslav was subsequently banished to Serbia and a large part of Dalmatia was pillaged in the process. Vukan gave Kočapar Duklja as a fief. The two would soon break, with Vukan, sending a squad to Doclea (city), forcing Kočapar to flee to Bosnia and then Zahumlje where he also died.