All around the world, Gwydion (Gwydion 
) is a very rare predominantly masculine, but very infrequently female forename. The forename Gwydion is characteristic of Northern Europe, particularly the United Kingdom, where it is a very rare masculine name.
| VARIANT | COUNTRY |
|---|---|
| Gwydion | Brazil, Australia, United States, United Kingdom, South Africa |
| gwydion pendderwen American musician (1946-1982), US (b. 1946) |
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| gwydion rozitisolds Australian politician, AU |
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| gwydion scherer researcher |
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Lyn, Hughes, Forbes, Walton, MartÃn, Snowdon, Ashdown, Clement, Petzold, Prisament, Roberts, Gallery, Gilbert, Laubach, Todrick, Edwards, Francis, Burghout, Rozitisolds, Griffith, Oliveira, Williams, Hastur, Thomas, Dafydd, Davies, Alun, Cruz, Ball, Rose, Rhys, Ifan, Wynn, Stone, Bowen, Brown, Churchill, Pinon, Tomos, Elwyn, Emrys, Hywel, Wynne, Zomer, Morris, Meurig, Suilebhan, Angell, Jones, and Destefanis