Kaydin \ka(y)-din\ as a boy's name is a variant of Kaden (Arabic), and the meaning of Kaydin is "companion".

The baby name Kaydin sounds like Kaydon, Kayden, Kaydan, Kaidin, Kadin and Caydin. Other similar baby names are Aydin, Kayde, Cayden, Kain, Camdin, Cardin, Katlin, Eadin, Gaylin, Haddin, Hayden, Haydon, Haydn, Haydan, Jaydon, Jayden, Jaidin, Kadon, Kaidon, Kaiden, Kaidan, Kadan, Caydon, Caydan, Caidin, Kadir, Kalin, Kaelin, Kamden, Kamdon, Kayven, Kayvan, Raydon and Taytin.