ðsmail Hakan Demirel (born 7 May 1986) is a Turkish former professional basketball player. He is 1.91 m tall and played the point guard position.
He studied at Istanbul Bilgi University. He started his professional career with Tofaà  in Turkish Basketball 2nd League. He was recruited to play for the Western Carolina University Catamounts, but the NCAA declared him permanently ineligible as a collegiate athlete because he played professional basketball in Turkey.
Demirel played his whole professional career in Turkey with the following clubs : Tofaà Â, Fenerbahçe, Erdemir, Darüà Âà Âafaka, Antalya BB, Royal Halñ Gaziantep, Tofaà Â, Uà Âak Sportif, Trabzonspor B.K. and ðstanbul BB.
With the junior national teams of Turkey, Demirel won the silver medal's at the 2004 FIBA Europe Under-18 Championship and at the 2006 FIBA Europe Under-20 Championship. He also won the bronze medal at the 2009 Mediterranean Games.
He was also member of the senior Turkish national basketball team at the 2006 FIBA World Championship and the EuroBasket 2007.