Aleksandar Kesar (; born 4 February 1972) is a Serbian professional basketball coach for the Fujian Sturgeons of the Chinese Basketball Association (CBA).
Kesar was an assistant coach of Partizan and Olympiacos. He was a head coach for Mega Aqua Monta, Azovmash Mariupol, Shandong Gold Lions, Fujian Sturgeons, and Tianjin Pioneers.
Kesar was an assistant coach of Duà ¡an Ivkoviàin the national team of Serbia at two FIBA EuroBaskets, 2009 in Poland and 2011 in Lithuania, and at the 2010 FIBA World Championship in Turkey. He won silver medal at EuroBasket 2009.
He led the university team of Serbia at two Summer Universiades, 2007 in Bangkok and 2009 in Belgrade. He won a gold medal at 2009 Universiade and a silver medal at 2007 Universiade.
Aleksandar is married. He and his wife, Ana, have two daughters, Klara and Atina.