Gailyn is a charming and unique name of American origin, derived from the name Gail. It is typically used for baby girls and carries the meaning of "lively" or "happy." The name Gailyn has a sweet and gentle sound, making it an endearing choice for parents seeking a modern yet timeless name for their daughter. With its American English pronunciation as GAY-lin (/ˈɡeɪlɪn/), Gailyn exudes elegance and grace. While not among the most popular names, it has a rich history in the United States, with sporadic occurrences dating back to the mid-20th century. The name Gailyn offers a sense of individuality and sophistication, making it an appealing option for contemporary parents seeking a distinctive moniker for their little one.