Gwennie \g-wennie, gwe(n)-nie\ as a girl's name is a variant of Guinevere (Welsh) and Gwendolyn (Welsh), and the meaning of Gwennie is "fair one; white and smooth, soft; fair bow; blessed ring".
The baby name Gwennie sounds like Gennie and Gwenni. Other similar baby names are Glennie, Glenne, Gwynne, Gwenore, Gwenny, Gwennore, Gwenn, Gwenna, Gwinne and Swannie.