Kelley is a common given name that can be used for both males and females. It has Irish origins, derived from the Gaelic surname Ó Ceallaigh, which means "descendant of Ceallach." The name is often associated with qualities such as brightness and warrior-like traits. In addition to being a name, Kelley is also a popular surname. Many notable individuals bear this surname, including Kelley Blue Book, a well-known vehicle valuation and automotive research company. The name is prevalent in various cultures and can be found in different forms across the world.