| Oboro-Guruma, the Wheeled MayakashiHidden Summoners · 032 | Hidden Summoners | 032 | Secret Rare | $1.27 |
| Obsessive UvualoopIgnition Assault · 028 | Ignition Assault | 028 | Common | €0.14 |
| Obsidian DragonPhantom Darkness · 023 | Phantom Darkness | 023 | Common | €0.14 |
| Obsidim, the Ashened CityPhantom Nightmare · 094 | Phantom Nightmare | 094 | Super Rare | $0.24 |
| Ocean Dragon Lord - Kairyu-ShinLegendary Duelists: Duels From the Deep · 017 | Legendary Duelists: Duels From the Deep | 017 | Ultra Rare | €3.33 |
| Ocean Dragon Lord - Neo-DaedalusStructure Deck: Fury from the Deep · 001 | Structure Deck: Fury from the Deep | 001 | Ultra Rare | €3.08 |
| Ocean of RegenerationMaze of the Master · 036 | Maze of the Master | 036 | Super Rare | $0.20 |
| Ocean's KeeperTactical Evolution · 081 | Tactical Evolution | 081 | Rare | $0.22 |
| OctoberserMagic Ruler · 052 | Magic Ruler | 052 | Common | €0.02 |
| OcubeamMetal Raiders · 030 | Metal Raiders | 030 | Common | €0.07 |
| Odd-Eyes Absolute DragonMaster of Pendulum Structure Deck · 042 | Master of Pendulum Structure Deck | 042 | Ultra Rare | €0.09 |
| Odd-Eyes Advance DragonDuel Power · 011 | Duel Power | 011 | Ultra Rare | €0.20 |
| Odd-Eyes AdventBreakers of Shadow · 066 | Breakers of Shadow | 066 | Rare | €0.08 |
| Odd-Eyes Arc Pendulum DragonLegendary Dragon Decks · 00 | Legendary Dragon Decks | 00 | Ultra Rare | €0.14 |
| Odd-Eyes Arcray DragonAge of Overlord · 030 | Age of Overlord | 030 | Ultra Rare | €0.94 |
| Odd-Eyes DragonSpace-Time Showdown Power-Up Pack · 01 | Space-Time Showdown Power-Up Pack | 01 | Ultra Rare | €0.11 |
| Odd-Eyes FusionDimension of Chaos · 063 | Dimension of Chaos | 063 | Secret Rare | $0.17 |
| Odd-Eyes Gravity DragonBreakers of Shadow · 043 | Breakers of Shadow | 043 | Ultra Rare | €0.15 |
| Odd-Eyes Lancer DragonBattles of Legend: Light's Revenge · 001 | Battles of Legend: Light's Revenge | 001 | Ultra Rare | $0.30 |
| Odd-Eyes Meteorburst DragonMaster of Pendulum Structure Deck · 041 | Master of Pendulum Structure Deck | 041 | Ultra Rare | €0.20 |
| Odd-Eyes Mirage DragonDragons of Legend: Unleashed · 001 | Dragons of Legend: Unleashed | 001 | Secret Rare | €0.06 |
| Odd-Eyes Override DragonLegendary Arc-V Decks · 38 | Legendary Arc-V Decks | 38 | Ultra Rare | €0.48 |
| Odd-Eyes Pendulum DragonDuelist Alliance · 004 | Duelist Alliance | 004 | Ultimate Rare | €0.09 |
| Odd-Eyes Pendulum Dragon of the Four Heavenly DragonsMagnificent Monsters · 013 | Magnificent Monsters | 013 | Grand Master Rare | — |
| Odd-Eyes Pendulumgraph DragonDimension Force · 034 | Dimension Force | 034 | Secret Rare | €0.10 |
| Odd-Eyes Persona DragonWeekly Shonen Jump January 2017 membership promotional card · 079 | Weekly Shonen Jump January 2017 membership promotional card | 079 | Ultra Rare | €0.02 |
| Odd-Eyes Phantasma DragonYu-Gi-Oh! ARC-V Volume 5 promotional card · 001 | Yu-Gi-Oh! ARC-V Volume 5 promotional card | 001 | Ultra Rare | €0.02 |
| Odd-Eyes Phantom DragonYu-Gi-Oh! ARC-V Volume 1 promotional card · 001 | Yu-Gi-Oh! ARC-V Volume 1 promotional card | 001 | Ultra Rare | €0.15 |
| Odd-Eyes Raging DragonRaging Tempest · 048 | Raging Tempest | 048 | Ultra Rare | €0.10 |
| Odd-Eyes Rebellion DragonClash of Rebellions · 051 | Clash of Rebellions | 051 | Ultimate Rare | €0.06 |
| Odd-Eyes Rebellion Dragon OverlordGhosts From the Past: The 2nd Haunting · 004 | Ghosts From the Past: The 2nd Haunting | 004 | Ultra Rare | €0.02 |
| Odd-Eyes Rebellion Xyz DragonBattles of Legend: Monstrous Revenge · 005 | Battles of Legend: Monstrous Revenge | 005 | Ultra Rare | €0.02 |
| Odd-Eyes Revolution DragonRise of the Duelist · 083 | Rise of the Duelist | 083 | Secret Rare | $0.13 |
| Odd-Eyes Saber Dragon2-Player Starter Deck: Yuya & Declan · 00 | 2-Player Starter Deck: Yuya & Declan | 00 | Ultra Rare | €0.78 |
| Odd-Eyes Solblaze DragonLegendary Arc-V Decks · 26 | Legendary Arc-V Decks | 26 | Ultra Rare | €0.24 |
| Odd-Eyes Venom DragonBattles of Legend: Light's Revenge · 006 | Battles of Legend: Light's Revenge | 006 | Secret Rare | €2.20 |
| Odd-Eyes Vortex DragonDimension of Chaos · 045 | Dimension of Chaos | 045 | Ultimate Rare | €0.02 |
| Odd-Eyes Wing DragonDimension Force · 098 | Dimension Force | 098 | Super Rare | €0.24 |
| Odd-Eyes Wizard DragonLegendary Duelists: Magical Hero · 046 | Legendary Duelists: Magical Hero | 046 | Rare | €0.05 |
| Odin, Father of the AesirStorm of Ragnarok · 040 | Storm of Ragnarok | 040 | Ultra Rare | €0.15 |
| Odin's EyeStorm of Ragnarok · 072 | Storm of Ragnarok | 072 | Common | €0.10 |
| Offerings to the DoomedLabyrinth of Nightmare · 051 | Labyrinth of Nightmare | 051 | Common | €0.08 |
| Offering to the ImmortalsAbsolute Powerforce · 068 | Absolute Powerforce | 068 | Rare | €0.10 |
| Offering to the Snake DeityPhantom Darkness · 077 | Phantom Darkness | 077 | Rare | €0.08 |
| Officiating ReverieBlazing Dominion · 088 | Blazing Dominion | 088 | Common | €0.09 |
| Officiator of Doom SamuelBlazing Dominion · 089 | Blazing Dominion | 089 | Super Rare | €0.19 |
| Ogdoabyss, the Ogdoadic OverlordAncient Guardians · 009 | Ancient Guardians | 009 | Ultra Rare | $3.65 |
| Ogdoadic CallingAncient Guardians · 013 | Ancient Guardians | 013 | Rare | €0.09 |
| Ogdoadic DaybreakAge of Overlord · 063 | Age of Overlord | 063 | Common | €0.06 |
| Ogdoadic HollowAncient Guardians · 012 | Ancient Guardians | 012 | Rare | €0.09 |