Editing Gwydion (section)

==Gwydion in other media==
[[Lloyd Alexander]]'s ''[[Chronicles of Prydain]]'', a series of children's [[fantasy novels]] inspired by Welsh myths, features a character named Gwydion that is based on the Gwydion of myth but markedly different in moral character. In the Prydain chronicles, Prince Gwydion is a member of the Sons of Don, Prydain's ruling house, and King Math's war leader; he succeeds to the throne when [[High King Math]] is slain. Gwydion meets [[Taran (character)|Taran]] when that Assistant Pig-Keeper chases after his charge, the pig [[Hen Wen]], who has fled their home. Man and boy travel together for some time, until they are captured and separated at Spiral Castle. In the first three books of the five-novel series, Gwydion defeats the [[Horned King]] by shouting his real name, leads the quest to secure the [[Black Crochan|Black Cauldron]], and helps Taran, [[Fflewddur Fflam]], [[Gurgi]] and [[Prince Rhun]] rescue [[Princess Eilonwy]] from the sorceress [[Achren]]. Finally he leads the defense of Caer Dathyl and, as High King, the assault on [[Annuvin]] by the sea. In the books, Prince Gwydion is an expert tracker, forester and warrior.  As a member of the Royal House of Don, he often wears a pendant depicting a simple golden disk meant to represent the sun.

[[Patricia Kennealy-Morrison]]'s ''[[The Keltiad|Keltiad]]'' series—[[Irish mythology|Irish]], [[Welsh mythology|Welsh]] and [[Scottish mythology|Scottish legends]] translated to an [[space opera|interstellar]], ''[[Star Wars]]'' style context—has a character named Gwydion Prince of Don as its co-protagonist. Like Alexander, Kennealy-Morrison bases her character on the mythological Gwydion, but humanizes him through her own creative process. Lover and First Lord of War to the Queen of Keltia, Aeron Aoibhell, Gwydion ultimately becomes Aeron's husband and King of Keltia, while having numerous adventures based on episodes from the various branches of the [[Mabinogion]].  He is a gifted bard, sorcerer and warrior, close to (and descended from) the magical [[Sidhe]]folk of Keltia, and is portrayed as Aeron's true and loving partner and her equal in most things. He takes a major part in the epic Battle of the Trees that ends "The Throne of Scone", the chronological last of the books published.

Gwydion is briefly featured in [[Neil Gaiman]]'s 2001 novel ''[[American Gods]]''. He appears as young, eager, acne-prone stockboy at a supermarket in Humansville, Missouri.

Gwydion was a prominent character in the 2003 animated film ''[[Y Mabinogi]]'', in which he was voiced by [[Philip Madoc]].

He also appears in [[Phillip Mann]]'s [[alternate history (fiction)|alternate history]] series ''A Land Fit for Heroes'', [[Judith Tarr]]'s fantasy series ''[[The Hound and the Falcon]]'' and the ''[[Alamut series]]'', [[Robert Carter (English novelist)|Robert Carter]]'s "The Language of Stones" series, the books of the [[Wales|Welsh]] author [[Jennifer Sullivan (writer)|Jenny Sullivan]] and in [[Jenny Nimmo]]'s ''Snow Spider Trilogy''. In ''[[The Mists of Avalon]]'', Gwydion is the birth name of both [[King Arthur]] and [[Mordred]].  Gwydion is given as the real identity of the mage Click, who appears as a minor supporting character in the Junkyard druid series by M D Massey, finally being revealed in book 7, Druid Vengeance.  A minor character named Gwydion appears in  ''[[The Oaken Throne]]'' by [[Robin Jarvis]].  He is also included in [[Alan Garner]]'s novel ''[[The Owl Service]]'' through the character of Huw Halfbacon (the last name a reference to stealing pigs).

The name Gwydion also appears in the Sierra game ''[[King's Quest III]]'', where a Prince Alexander of Daventry has been kidnapped by an evil wizard named Manannan who renames him Gwydion.

In the 2018 video game ''[[Red Dead Redemption 2]]'', Gwydion is the name of Josiah Trelawny's horse.

In the novel, The Wild Huntress by Emily Lloyd-Jones, Gwydion features as a main character, a Prince of Gwynedd, in this retelling of the Wild Hunt in Annwvyn.