Hakan Günday (born 29 May 1976) is a Turkish writer, novelist, and screenwriter. He was born on the island of Rhodes. Günday spent his childhood years in Brussels, before moving to Ankara where he completed his education at Tevfik Fikret High School.

He pursued higher education at Hacettepe University, Université Libre de Bruxelles, and Ankara University. Günday published his first novel, Kinyas ve Kayra, in 2000. His notable works include Loss (Ziyan), which was awarded the Prix France-Turquie, and More (Daha), which received the Prix Médicis étranger.

In addition to his novels, Günday is also a playwright. He collaborates with the DOT company in Istanbul, where his play Mandrel premiered at the 17th International Istanbul Theatre Festival in 2010.

Günday currently resides and works in Istanbul.