Given name

Gwillyn

“the determined protector”

Gwillyn is a variant of Guillaume. In French use, Guillaume carries the interpretation “the determined protector.”

Meaning & origin

What it means

Gwillyn is a variant of Guillaume. In French use, Guillaume carries the interpretation “the determined protector.”

Explained through its name family

Gwillyn’s family of names

Gwillyn has a related form in Guillaume.

Walk Gwillyn’s family in the name graph

GwillynGuillaume

The ring: nicknames and forms.

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Nicknames & forms 1

Diminutives, pet forms, short forms and variants used alongside the name.

Similar names

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