US Popularity Rank: 5669

Origin: Irish

Meaning: Mighty warrior

Kailen is a beautiful girl's name originating in Ireland with a meaning of "mighty warrior." One of the greatest warriors in Irish mythology is the hero and demigod Cú Chulainn. Born Sétanta, he took his name after killing Culann's fierce guard dog in self-defense and offering to take its place until a replacement could be reared. Hence, he became the "Hound (cú) of Culann." Kailen will often hear the story in their formative years and can hold dear Cú Chulainn's mighty warrior, never-say-die spirit.