Slender or fair; potentially a modern combination name.
Keylin is a modern American name likely derived from the Irish name Caelan, meaning slender or narrow. It may also be a creative blend of the name Kay and the suffix -lin. As a contemporary coinage, it lacks a singular ancient etymology but carries associations with grace and light.
Less common today
Keylin isn't in the latest US Top 1000. It last peaked at #2,271 in 2022.
US births per 5-year period, 1990βpresent (SSA data).