Kayleb \ka(y)-leb\ as a boy's name is a variant of Caleb (Hebrew), and the meaning of Kayleb is "faith, devotion, whole hearted".
The baby name Kayleb sounds like Kaylob, Kaleb and Cayleb. Other similar baby names are Kayley, Kale, Kaile, Cayle, Gayle, Gaylen, Gayler, Kaley, Kalen, Kyle, Kyler and Kylen.