The name Kathlyne appears to be a modern spelling variation, elaboration, or stylistic form connected to the name Katherine. The root name Katherine has origins in Greek and is generally associated with the meaning pure. Names such as Kathlyne often preserve the sound or cultural feel of the original root while adding a more contemporary or distinctive spelling style.

The root form of Kathlyne is Kathlyne — meaning The name 'Kathlyne' has no known meaning..

Kathlyne remains a beloved choice, ranking #6 in the US. Timeless appeal across cultures and generations.