The Corca Oíche, meaning "the race of Oíche" (also Corco Óchae, Corcu Oche, Corco Che, Corcuighe, Corcoiche) was an ancient tribe, possibly of Pictish origin, existing since pre-Christian times in Ireland. It is possible that they descend from the Cruthin, a people whose territory existed near Lough Neagh in north-east Ireland. As such, some sources claim that they descended from the semi-legendary hero Dubthach Dóeltenga, or more commonly that they are descended from Oíche or Óchae, the daughter of Cronn Badhraoi of the Dál nAraidi, and her son Fergus Foga last king of the Ulaid to rule at Emain Macha.