Career
Olcan started his career for Fenerbahçe, where he played 18 times and scored three goals for the youth team, before transferring to Gaziantepspor in the 2008-2009 season for three years and later to Trabzonspor in 2012. On 28 November 2013, Olcan was the hat-trick hero of the Union of European Football Associations Europa League match against Apollon Limassol. Galatasaray
On 5 July 2014, Olcan signed a four-year contract with Galatasaray, for an €4M fee.
He became a left-back in Galatasaray, especially after Lionel Carole"s injury and Alex Telles" loaning to Internazionale.
On 25 October 2015, Olcan scored a head goal against Fenerbahçe in Süper Lig, also in a rivalry match, which ended 1–1 draw. On 1 March 2012, Olcan played his first international match for Turkey, against Slovakia.
