Novak Grebostrek

Novak Grebostrek (fl. 1312) was a Serbian veliki vojvoda (military commander) under the Serbian Kingdom of Stefan Uroš II Milutin (r. 1282–1321). Stefan Milutin sent an army under the command of Novak to aid the Byzantine Empire against Ottoman Turks. This detachment under Novak's command spent a year campaigning against the Turks in Asia Minor.

Serbia was given the town of Kucovo by Byzantine Emperor Andronikos II Palaiologos. The victories of Novak have been recorded in papers of Church of St. George, Staro Nagoričane.