Gwyndolyn \gw(y)-ndol-yn, gwyn-do-lyn\ as a girl's name is a variant of Gwendolyn (Welsh), and the meaning of Gwyndolyn is "fair bow; blessed ring".

The baby name Gwyndolyn sounds like Gwendolynn, Gwendolin, Gwendolen and Gwendalyn. Other similar baby names are Gwenndolen, Gwendolynne, Gwendoline, Gwendolene, Guendolynn, Guendolin, Guendolen and Mandolyn.