Cailin \ca(i)-lin\ as a boy's name (also used as girl's name Cailin), is a variant of Caelan (Gaelic). See for meaning of Cailin.

The baby name Cailin sounds like Calan, Cailean, Callan, Colin, Collin, Cullin, Gaylin, Galin, Kalin and Kaelin. Other similar baby names are Carlin, Catlin, Jailin and Caidin.