Killian is a name that can refer to various individuals, places, or fictional characters. It is often used as a first name in many cultures, particularly in Irish and Gaelic traditions, where it means "little church." The name has gained popularity in recent years and is sometimes associated with strong, heroic figures in literature and media. In popular culture, Killian may refer to characters in movies, television shows, or video games. For example, Killian Jones is a character from the TV series Once Upon a Time, known for his adventurous spirit and complex personality. The name is also used in various brands and products, contributing to its recognition in contemporary society.