Dain \dain\ as a boy's name is a variant of Dane (Old English), and the meaning of Dain is "from Denmark, Dane".

The baby name Dain sounds like Dan, Dann, Daine and Dwain. Other similar baby names are Bain, Cain, Kain, Dai, Darin, Davin, Fain, Iain, Pain, Rain, Wain and Zain.