Ayyıldız (star and crescent) is a Turkish compound word consisting of ay (crescent) and yıldız (star). It may refer to:
Ay-yıldız, the national emblem of Turkey Ayyıldız, Oltu, a neighborhood in Oltu district of Erzurum, Turkey Ay-Yıldız Stadium, a stadium in Karabük, Turkey Crescent Star Party (Turkey), a Turkish political party Şilan Ayyıldız (born 1999), Turkish female middle-distance runner