Meaning and Origin of the Name. Glyn is a boys names that is short form of the Welsh name Glynd^wr. It is also reported that Glyn is the Welsh equivalent to the Scottish name Glen. Glyn is also the Welsh word of 'valley'.
Glyn is baby boy name mainly popular in Christian religion and its main origin is . Glyn name meanings is Mountain valley, a narrow, secluded valley. Other similar sounding names can be Glynn.