Hayrettin

Hayrettin may refer to:

People

 * Hayreddin Barbarossa (ca. 1478 – 1546), Turkish privateer and Ottoman admiral
 * Hayrettin Yerlikaya (born 1981), Turkish footballer
 * Hakan Hayrettin (born 1970), Turkish/English footballer
 * Hayrettin Karaoğuz (born 1984) or just Hayrettin, Turkish comedian.

Places

 * Sancaktar Hayrettin Mosque, Mosque in Istanbul
 * Gölcük Barbaros Hayrettin Lisesi, public high school in Gölcük, Kocaeli, Turkey
 * Kheïr Eddine, a town in Mostaganem Province, Algeria.
 * Hayredin, a village in Bulgaria