Kathey \k(a)-they\ as a girl's name is a variant of Kathy. See for origin and meaning of Kathey.
The baby name Kathey sounds like Kathee, Katey and Kathe. Other similar baby names are Kasey, Kacey, Kalley, Kaley, Kahley, Kaysey, Kaycey, Kassey, Katy, Katie, Kathie, Kathi, Katha, Katee, Kate, Kaitey, Cathy, Cathee, Cathe, Catey, Kayley, Kailey, Kascey, Kaethe, Kittey, Kathya, Kathia, Kaeley and Mathea.