Pure or keeper of the keys
Kailynn is a modern American invention, likely created by combining the name Kai with the popular suffix -lynn. While its roots are multifaceted, it is often associated with the Greek name Katherine, meaning pure, or the Welsh name Kay, meaning keeper of the keys.
About 78 girls were named Kailynn in 2025.
US births per 5-year period, 1990–present (SSA data).
The same feel as Kailynn — far less common.
Hidden gems that stand out.
