Flainn \f-lai-nn\ as a boy's name is a variant of Flann (Irish, Gaelic), and the meaning of Flainn is "ruddy-complected".

The baby name Flainn sounds like Flinn, Flynn and Flin. Other similar baby names are Alain, Alann, Blain, Blaine, Faine, Fain, Finn, Flamino, Flannan, Flavian, Flavien, Flint, Frann, Fraine and Glinn.