Gwyn \gw-yn\ as a boy's name (also used as girl's name Gwyn), is of Welsh origin, and the meaning of Gwyn is "fair, white blessed, holy". Used as a masculine name in Wales.

Gwyn has 6 variant forms: Guinn, Gwin, Gwinn, Gwynn, Gwynedd and Wyn.

Baby names that sound like Gwyn are Gwayn, Gayne, Gwayne, Gawayn, Gian, Gunn, Gun and Gyan.