A modern spelling of Cathryn/Kathryn, ultimately from Greek katharos meaning pure.
Cathrynn is a modern spelling of Cathryn or Kathryn, ultimately from the Greek root katharos, meaning pure. The doubled consonants and altered ending give the old classic a more stylized, contemporary finish.
This kind of spelling keeps the name recognizable while adding individuality. Cathrynn feels familiar in sound but less expected on the page, which is part of its modern appeal. It belongs to the long line of Katherine derivatives, but its visual form pushes it toward a sharper, more personalized identity. The name suggests tradition that has been slightly restyled for a newer age.