Catelin, a graceful modern respelling of the Irish Caitlín—itself derived from the Greek Aikaterine, meaning “pure”—strikes an elegant balance between heritage and individuality. Although its usage in the United States has never surged into the top tiers (annual births have hovered in the single digits or teens, with Social Security rankings oscillating modestly between 792 and 948 from 1985 through 2015), that very rarity lends Catelin an air of quiet distinction, as if each new bearer carries a carefully preserved secret. Phonetically straightforward—KAT-lin (/kæt lɪn/)—the name slips easily into conversation yet remains refreshingly uncommon, much like a hidden stream in a familiar forest. Its steady, unhurried presence over three decades reflects a subtle preference for names that honor Celtic roots without succumbing to passing fads. In choosing Catelin, parents subtly declare a fondness for tradition laced with modern flair, bestowing upon their daughter a name at once pure, enduring, and slyly singular.