Cú Chulainn is a legendary hero in the Ulster Cycle of Irish mythology.
Cú Chulainn, Cuchulain, Cuchulainn, etc., may also refer to:
Cuchulain of Muirthemne, a 1902 book by Augusta, Lady Gregory The Cú Chulainn Coaster, a roller coaster at Emerald Park in Ashbourne, Ireland "Lancer", the Lancer-class "Servant" of Bazett Fraga McRemitz in the Fate/stay Night series
See also Serglige Con Culainn (English: The Sick-Bed of Cú Chulainn), a story from Irish mythology.