The Smarta tradition (स्मार्त), also called Smartism, is a movement in Hinduism that developed and expanded with the Puranas genre of literature. It reflects a synthesis of four philosophical strands, namely Mimamsa, Advaita, Yoga, and theism. The Smarta tradition rejects theistic sectarianism, and is notable for the domestic worship of five shrines with five deities, all treated as equal – Ganesha, Shiva, Shakti, Vishnu and Surya. The Smarta tradition contrasted with the older Shrauta tradition, which was based on elaborate rituals and rites. There has been a considerable overlap in the ideas and practices of the Smarta tradition with other significant historic movements within Hinduism, namely Shaivism, Brahmanism, Vaishnavism, and Shaktism.
The Smarta tradition developed during (early) Classical Period of Hinduism around the beginning of the Common Era, when Hinduism emerged from the interaction between Brahmanism and local traditions. The Smarta tradition is aligned with Advaita Vedanta, and regards Adi Shankara as its founder or reformer. Shankara championed the ultimate reality is impersonal and Nirguna (attributeless) and any symbolic god serves the same equivalent purpose. Inspired by this belief, the Smarta tradition followers, along with the five Hindu gods, include a sixth impersonal god in their practice. The tradition has been called by William Jackson as "advaitin, monistic in its outlook".
The term Smarta also refers to Brahmins who specialise in the Smriti corpus of texts named the Grihya Sutras, in contrast to Shrauta Sutras. Smarta Brahmins, with their focus on the Smriti corpus, are contrasted from Srauta Brahmins, who specialise in the Sruti Corpus, that is, rituals and ceremonies that follow the Vedas.
Smarta (स्मार्त) is an adjective derived from Smriti (). The smriti are a specific body of Hindu texts usually attributed to an author, traditionally written down but constantly revised, in contrast to Srutis (The Vedic Literature) considered authorless, that were transmitted verbally across the generations and fixed.