Emlyn \e-ml-yn, em-lyn\ as a boy's name (also used as girl's name Emlyn), is pronounced EM-lin. It is of Welsh origin. Place name: the Welsh town of Castell Newydd Emlyn. Possibly from the old Roman surname Aemilius (see Emil). May also be of Celtic origin as there are Breton and Irish saints named Aemilianus, which may be a Latin form of an old Celtic name. Playwright and actor Emlyn Williams.
Emlyn has 1 variant form: Emlen.