Önal ([øˈnal]) is a Turkish surname. Notable people with the surname include:
Ayşe Önal (born 1955), Turkish female journalist and writer
Ayşe Önal (footballer) (born 1996), Turkish women's footballer
Ayşe Hatun Önal (born 1978), Turkish model
Funda Önal (born 1984), English model
Füsun Önal, Turkish female pop singer
Güldeniz Önal (born 1986), Turkish volleyball player
Murat Önal (born 1987), Turkish footballer