Osman Zeki Korkmaz (born 2 May 1982) is a Turkish football manager who is currently the head coach of Vanspor.
Korkmaz first began coaching with youth sides with Fenerbahçe in 2006, and left to become an assistant manager in 2009. He was assistant manager with the clubs Konyaspor, ÃÂaykur Rizespor, Gaziantepspor, Ankaragücü, and Eskià Âehirspor amongst others. He helped Ankaragücü win the TFF First League and earn promotion to the Süper Lig.
He first acted as manager with Yeni Amasyaspor in the 2014-15 season. He was appointed as the assistant for ðsmail Kartal in the Süper Lig with Ankaragücü from 2016 to 2017.
Korkmaz was named as the manager for ðstanbulspor in the TFF First League on 23 August 2021. In his first season coaching, he helped ðstanbulspor finish in fourth place earning a playoff spot; they defeated Bandñrmaspor in the playoff final promoting ðstanbulspor to the Süper Lig for the first time in 17 years. On 9 June 2022, he extended his contract with the club until 2025.