Pralaya is a concept in Hindu eschatology. Generally referring to four different phenomena, it is most commonly used to indicate the event of the dissolution of the entire universe that follows a kalpa (a period of 4.32 billion years) called the Brahmapralaya.

Pralaya also refers to Nityapralaya, the continuous destruction of all animate and inanimate beings that occurs on a daily basis, Prakritapralaya, the great flood produced by Prakriti