Cailyn comes from the Greek / Irish tradition, meaning Pure.
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How popular is Cailyn?
2009peak year
Today, Cailyn is a less common but recognizable name in U.S. records (ranked #2,496) with about 81 babies named Cailyn each year. At its height in 2009, Cailyn reached #723 nationally — 401 babies received it that single year. Its strongest stretch was the 2000s. Cailyn's usage has fallen in recent decades. In all, around 5,509 babies have been registered as Cailyn since 1880.
Year-by-year registrations1880–2024 · U.S. Social Security data
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