Meaning A spelling variant of Kaylee, this popular Engilsh name has Celtic origins and means 'slender. Origin of Caylee Celtic , Irish +-100%Zoom level changed to 1 Popular Middle Names Ann, Isabella, Jane, Marie, Nicole, Sandra, Shae, Susanne, Jordyn, Leann Pronunciation 🔊 Listen Caylee KAY-lee Similar Names Kaylee Kayleen Kaylei Kylin Kylie Raegan Caoilfhinnn Kaley Keyley Mariel Year by Year Popularity of Caylee