Garuda Upanishad or Garudopanishad is one of 108 Upanishadic Hindu scriptures, written in Sanskrit language. It is dedicated to Garuda, the eagle-demigod mount of the god Vishnu. It is a Vaishnava Upanishad, and associated with the Vaishnava sect, which worships Vishnu, and is associated with the Atharvaveda. It is considered as "late" Upanishad in terms of dating. The Garuda Upanishad has mantras and charms that are said to cure poison. The text says that its charms can not only prevent and remedy snakebite and the venom, but also poison from any other source like other poisonous animals, weapons and supernatural beings.

The Vaishnava Upanishads are minor Upanishads of Hinduism, related to Vishnu theology (Vaishnavism). There are 14 Vaishnava Upanishads in the Muktika anthology of 108 Upanishads. They, along with other minor Upanishads, are generally classified separate from the thirteen major Principal Upanishads considered to be more ancient and from the Vedic tradition.