The name Conleth means Chaste Fire and is of Irish origin. Conleth is name that's been used by parents who are considering unisex or non-gendered baby names--baby names that can be used for any gender.

From an old Irish name Conláed, meaning "chaste fire." Saint Conláed was a 5th-century bishop of Kildare. Conleth Hill, actor (Game of Thrones)