Destoroyah (デストロイア Desutoroia) is a crustacean kaiju who first appeared in the 1995 Toho Godzilla film Godzilla vs. Destoroyah.

Godzilla's final opponent in the Heisei series, Destoroyah is the incarnation of the Oxygen Destroyer, the chemical weapon used to kill the original Godzilla in 1954. When the weapon was detonated at the bottom of Tokyo Bay, it revived a colony of Precambrian crustaceans trapped in the strata, and the resulting anaerobic conditions caused the creatures to undergo an abnormal path of mutation and evolution until they finally came to the surface in 1996. Able to grow and evolve by combining with each other, the creatures took on numerous different forms before finally converging into a single gigantic demonic monster. Destoroyah fought Godzilla at the peak of his power and nearly defeated him, but was finally destroyed by a combination of the JSDF's ULT cryolasers and the extreme heat given off by the near-meltdown Godzilla.