Slender, fair, and beautiful
Keelynn is a modern American coinage, likely a blend of the Irish name Keely and the popular suffix -lynn. It draws its roots from the Gaelic 'caol', meaning slender, and is often associated with grace and beauty.
Less common today
Keelynn isn't in the latest US Top 1000. It last peaked at #10,105 in 2013.
US births per 5-year period, 1990βpresent (SSA data).