Caitlyn Kaitlin Kaitlyn Katelyn Catelyn Caitrin Kaitlynne Katie Kaydee Katleen The name Kaitlyn is a form of the Irish Gaelic name Caitlin which is derived from the French name Catherine Kaitlyn simply means pure whether that be pure of spirit pure of heart or pure of thought action It is thought to be connected to the Greek Goddess Hecate who was commonly known as Kaitlyn the Beautiful