Veljko Petrović (; ; c. 1780–1813), known simply as Hajduk Veljko (Хајдук Вељко, [xǎjduːk v̞ɛ̌ːʎkɔ]), was a one of the voivodes (military commanders) of the Serbian Revolutionary forces in the First Serbian Uprising against the Ottoman Empire, in charge of tbe Negotin area. He was one of the biggest heroes of the Uprising.