Mechagodzilla is a fictional monster who appears in movies in the Godzilla series. He is Godzilla's robotic doppelgänger. He first appeared in Godzilla vs. Mechagodzilla, a 1974 kaiju movie from Toho Studios. He is one of Godzilla's most powerful enemies.
- Godzilla vs. Mechagodzilla (1974)
- Terror of Mechagodzilla (1975; also as "Mechagodzilla 2")
- Godzilla vs. Mechagodzilla II (1993; also as "Super Mechagodzilla")
- Godzilla Island (1997)
- Godzilla Against Mechagodzilla (2002; also as "Kiryu")
- Godzilla: Tokyo S.O.S. (2003; also as "Kiryu")