Cataclysm may refer to:
Common meanings Generally, any large-scale disaster Deluge (mythology) Doomsday event, see hypothetical risks to civilization, humans, and planet Earth A catastrophic natural event: List of geological phenomena Earthquake, the result of a sudden release of energy in the Earth's crust that creates seismic waves Volcanic eruption
Video games World of Warcraft: Cataclysm, an expansion pack of Blizzard Entertainment's World of Warcraft Cataclysm: Dark Days Ahead, an open-source cross-platform roguelike video game Homeworld: Cataclysm, a stand-alone expansion, of the Homeworld space-based RTS franchise
Books and comics Cataclysm (Dragonlance), a fictional event in the Dragonlance novels Batman: Cataclysm, a DC Comics crossover story arc featuring Batman Cataclysm: The Ultimates' Last Stand, a 2013–2014 crossover storyline appearing in the Ultimate Marvel line of books Godzilla: Cataclysm, a miniseries from the Godzilla comics by IDW Publishing, see Godzilla (comics)#Miniseries
Other uses A special ability used by Cat Noir, a character in Miraculous: Tales of Ladybug & Cat Noir "Cataclysm", a song by Au5 and Crystal Skies "Cataclysmic", a song by Joe Satriani from the 2015 album Shockwave Supernova Cataclysm (film), a 1980 American film
See also Cataclysmic variable star, which irregularly increases in brightness by a large factor, then drops back down to a quiescent state (initially called nova) Cataclysmic pole shift hypothesis, pseudo-scientific claim of past rapid changes of Earth's axis Ekpyrosis, a conflagration Pyroclastic flow, fast-moving current of hot gas and volcanic matter Lahar, violent volcanic mudflow or debris flow Eschatology, part of theology concerned with the final events of history Kataklysm, Canadian death metal band