Sannyasa Upanishads are a group of minor Upanishads of Hinduism related to the renunciation, monastic practice and asceticism. There are 19 Sannyasa Upanishads in the Muktika anthology of 108 Upanishads. They, along with other minor Upanishads, are generally classified separately from the thirteen major Principal Upanishads considered to be from the ancient Vedic tradition.