Gwynn
Gwynn meaning: Of the white brow.
Gwynn origin: Celtic
Gwynn gender: Female

Gwynne
Gwynne meaning: White.
Gwynne origin: Welsh
Gwynne gender: Female

Gwynneth
Gwynneth meaning: White, fair, happiness, blessed.
Gwynneth origin: Welsh
Gwynneth gender: Female