- Sorciere de Fleur
- Soul Tiger
- Spear Cretin
- Spear Dragon
- Speed Warrior
- Spell Canceller
- Spell Striker
- Spike Egg
- Spikebot
- Spirit Caller
- Spirit of Flames
- Spirit of the Breeze
- Spirit of the Harp
- Spirit of the Pharaoh
- Spirit Ryu
- Splendid Rose
- Spore
- St. Joan
- Stardust Dragon
- Stardust Phantom
- Stardust Xiaolong
- Stealthroid
- Steam Gyroid
- Steamroid