- The Wicked Worm Beast
- The Winged Dragon of Ra
- Thestalos the Firestorm Monarch
- Thirst for Compensation
- Thor, Lord of the Aesir
- Thorn of Malice
- Thorn Princess
- Thought Ruler Archfiend
- Thousand Crisscross
- Thousand Dragon
- Thousand Energy
- Thousand Knives
- Thousand-Eyes Idol
- Thousand-Eyes Restrict
- Threatening Roar
- Three-Headed Geedo
- Thunder Dragon
- Thunder End Dragon
- Thunder Short
- Thunder Unicorn
- Ties of the Brethren
- Tiger Axe
- Tiger Dragon
- Time Fusion