Cailyn is a Gaelic name that means "girl; pure." It is a variant form of Cailin and Caitlin, originating from the Irish word cailín, which translates to "girl." Over time, the name has evolved from being a rare variant to gaining popularity in the early 2000s. It peaked at in the U.S. in 2009 but has since declined in usage. Despite its decline, the name remains significant for its unique blend of Gaelic and Greek influences, making it a timeless choice for parents seeking a name with deep cultural roots.
