Brandon Costner (born July 21, 1987) is an American collegiate basketball power forward for the North Carolina State Wolfpack basketball team. He sat out his first season because of an injury, earning a medical redshirt and making 2007 his freshman season. His highest scoring game was in the 2007 ACC Tournament against Duke in which he scored 30 points in the Wolfpack victory.

Costner is a left-hander, whose original number was 23 prior to his redshirt season. He announced March 22, 2009 that he would forgo his senior season at North Carolina State and enter the NBA Draft, where he is a potential first round selection.

Costner grew up in West Orange, New Jersey, where he attended Seton Hall Preparatory School.