The Chandogya Upanishad (Sanskrit: ????????????????, IAST: Chandogyopanisad) is a Sanskrit text embedded in the Chandogya Brahmana of the Sama Veda of Hinduism. It is one of the oldest Upanishads. In the Muktika canon of 108 Upanishads, it is listed as the ninth.

The Upanishad belongs to the Tandya school of the Samaveda. Like Brihadaranyaka Upanishad,