Petar Aleksic (born 2 November 1968) is a Bosnian-Swiss professional basketball coach and former player.
He is the current head coach of Fribourg Olympic of the Swiss Basketball League (SBL).
From 2013 until 2016, he coached Switzerland's national basketball team, which he led to a surprise victory over Russia at the 2015 EuroBasket qualification.
As a professional player, he played in the Federal Republic of Yugoslavia, Hungary, Switzerland and Bosnia and Herzegovina.
After his retirement as a player he won the Basketball Bundesliga (BBL) as assistant coach of Alba Berlin.
He also coached BBC Feldkirch Baskets in Austria and several Swiss teams as head coach.