Pure
Cailyn is a modern Americanized spelling of the Irish name Caitlin, which itself is the Irish form of Catherine. It ultimately derives from the Greek name Aikaterine, which is widely associated with the concept of purity.
About 40 girls were named Cailyn in 2025.
US births per 5-year period, 1990–present (SSA data).
American professional soccer player
The same feel as Cailyn — far less common.
Hidden gems that stand out.
