Cormac Cond Longas (Connlongas, Connloinges, `Exiled Prince`) was the eldest son of Conchobar mac Nessa by his own mother, Ness, in the Ulster Cycle of Irish mythology. His foster father was Fergus mac Róich. Cormac followed Fergus into exile in Connacht after the Deirdre affair, and fought for Ailill and Medb against his father in the Táin B