Guendolynn \gu(e)-ndoly-nn, guen-do-lynn\ as a girl's name is a variant of Gwendolyn (Welsh), and the meaning of Guendolynn is "fair bow; blessed ring".
The baby name Guendolynn sounds like Gwendolynn and Guendolinn. Other similar baby names are Gwendolynne, Guendolin and Guendolen.