Vukac Hrvatinić was a Duke in the service of Ban Tvrtko Kotromanić of Bosnia. He was a member of the Croat House of Hrvatinić.
In 1363 Bosnia was invaded by the Hungarian King. The city of Soko on Pliva was defended by Vukac during the King's siege on 8-10 July. Vukac defended it so efficiently that the King practically became too bored to besiege it any further and retreated to Hungary.
Vukac had three sons: