Modern invented name, possibly meaning pure lake
Kaislynn is a contemporary American invention, likely created by blending the name Kai with the popular suffix -lynn. While its roots are modern, it can be interpreted as combining the Hawaiian or Germanic 'Kai' (sea or pier) with the Welsh 'Lynn' (lake).
Less common today
Kaislynn isn't in the latest US Top 1000. It last peaked at #5,393 in 2021.
US births per 5-year period, 1990βpresent (SSA data).