Cayeux may refer to:
Places
Cayeux-en-Santerre, a commune in the Somme department in Hauts-de-France in northern France Cayeux-sur-Mer, a resort town in the Hauts-de-France, in northern France Dorsum Cayeux, a wrinkle ridge in Mare Fecunditatis on the Moon Monchy-Cayeux, a commune in the Pas-de-Calais department in the Hauts-de-France in northern France
People Cayeux (surname)