The Nirvana Upanishad is an ancient sutra-style Sanskrit text and a minor Upanishad of Hinduism. The text is attached to the Rig Veda, and is one of the 20 Sannyasa (renunciation) Upanishads. It is a short text and notable for its distilled, aphoristic presentation with metaphors and allegories.

The Upanishads are late Vedic and post-Vedic Sanskrit texts that "document the transition from the archaic ritualism of the Veda into new religious ideas and institutions" and the emergence of the central religious concepts of Hinduism. They are the most recent addition to the Vedas, the oldest scriptures of Hinduism, and deal with meditation, philosophy, consciousness, and ontological knowledge. Earlier parts of the Vedas dealt with mantras, benedictions, rituals, ceremonies, and sacrifices.