Doppelganger (disambiguation)
"Doppelganger" may refer to any of the following:
- "Doppelganger", a Trap Card
- "Doppleganger", a Spell Card
- "Doppel-ganger": a monster hologram, that Seto Kaiba used in artificial Penalty Games.
- "Greenkappa": a Monster Card, known as "Doppelganger" in the Japanese version.