Glenys \g-len-ys, gl(e)-nys\ as a girl's name is of Welsh origin, and the meaning of Glenys is "holy". From a different root as the similar-sounding Glynis.
Glenys has 5 variant forms: Glenice, Glenis, Glennice, Glennis and Glennys.
Baby names that sound like Glenys are Glinys and Glinyss.