Lainey is a popular name often used for girls. It is derived from the name Elaine, which has roots in Old French and means "bright" or "shining light." Lainey can also be a diminutive form of names like Alaina or Delaney. In recent years, Lainey has gained popularity in various cultures, particularly in the United States. It is often associated with a friendly and approachable personality. Many people named Lainey are known for their creativity and enthusiasm in social settings.