Antonije "Anta" Simeonovic, better known as Colak-Anta (Serbian Cyrillic: ?????-???? ??????????; 1777–1853) was a Serbian fighter and military commander (Vojvoda), one of the most important figures of the First Serbian Uprising of 1804-1813, a spontaneous armed rebellion that became a war of liberation from the Ottoman Empire, the Serbian Revolution ultimately became a symbol of the nation-building process in the Balkans, provoking unrest among the Christians in both Greece and Bulgaria.
He was a military commander, governor of the province of Kruševac, and later in life, Chief Magistrate.
Colak-Anta fought under Grand Leader Karadorde, and is the eponymous founder of the notable Colak-Antic family.