Cu Chulainn is one of the most famous Irish mythological heroes. He appears in the stories of the Ulster Cycle, and Scottish and Manx folklore. His given name at birth was Setanta but he gained the name Cu Chulainn, meaning ‘Culann’s Hound’ after he killed a ferocious guard dog belonging to a smith named Culann. The legends of Cu Chulainn are still told to this day. As a mythological hero, the stories of his strength and power have lived on, re-told throughout the years in many ways.