Cepheus (Ancient Greek: Κηφεύς Kepheús) may refer to:
In Greek mythology Cepheus (father of Andromeda), and King of Aethiopia Cepheus (son of Aleus), a king of Tegea, Arcadia
In astronomy Cepheus (constellation), one of the 88 modern constellations Cepheus (crater), a lunar impact crater
In Computing Cepheus (poker bot)
In modern fiction Cepheus Daidalos, a fictional character in the manga and anime, Saint Seiya Cepheus, the FM king in Mega Man Star Force In the Galaxy Railways, one of the squads is named the Cepheus Platoon.
Other uses USS Cepheus (AKA-18), an Andromeda class attack cargo ship