Vuk Branković (, , 1345 – 6 October 1397) was a Serbian medieval nobleman who, during the Fall of the Serbian Empire, inherited a province that extended over present-day southern and southwestern Serbia, entire Kosovo, the northern part of present day Republic of North Macedonia, and northern Montenegro. His fief (and later state) was known as "Oblast Brankovića" (District of Branković) or simply as "Vukova zemlja" (Vuk's land), which he held with the title of "gospodin" (lord, sir), under Prince Lazar of Serbia. After the Battle of Kosovo (1389), Vuk was briefly the "de facto" most powerful Serbian lord.