This is a listing of characters who appear in only one of the numerous aspects of the Yu-Gi-Oh! franchise, including the original manga, its two anime adaptations (the 1998 Toei anime and the 2000 Yu-Gi-Oh! Duel Monsters anime, known internationally simply as Yu-Gi-Oh!), and assorted movies and video games.
Japanese names in Western order (surname after the given name) go first, with the English anime name, if applicable, second.
For a listing of the major characters across the three media, see: List of Yu-Gi-Oh! main characters
For a listing of secondary characters who appear in multiple media, see: List of Yu-Gi-Oh! anime and manga characters