Mehmet Zeki Çelik (born 17 February 1997) is a Turkish professional footballer who plays as a right-back for French club Lille.
Born in Bursa as the youngest of 9 children, Çelik went through the Bursaspor youth academy and became a professional in 2015. He signed on loan with Karacabey Birlikspor in 2015.
In 2016, he joined İstanbulspor. His good performance with İstanbulspor earned him a call-up to the senior Turkey national football team in 2018, despite playing in the TFF First League.
On 8 July 2018, Çelik signed with Lille OSC on a five-year contract. Çelik made his professional debut with Lille in a 3–1 Ligue 1 win over Stade Rennes on 11 August 2018.
Çelik made his professional debut for the Turkey national football team in a 1–1 friendly with Russia national football team on 5 June 2018.