Glennys \g-lenn-ys, gl(en)-nys\ as a girl's name is a variant of Glenys (Welsh), and the meaning of Glennys is "holy".

The baby name Glennys sounds like Glennis, Glenis, Glynnis, Glinys and Glinnis. Other similar baby names are Glennda, Glenna, Glennie, Glenne and Glenn.