Nataraja (Sanskrit: नटराज, IAST: Naṭarāja; Tamil: நடராஜர், Naṭarājar), also known as Adalvallan (ஆடல்வல்லான், Ādalvallāṉ), is a depiction of Shiva, one of the main deities in Hinduism, as the divine cosmic dancer. His dance is called the tandava. The pose and artwork are described in many Hindu texts such as the Tevaram and Thiruvasagam in Tamil and the Amshumadagama and Uttarakamika agama in Sanskrit and the Grantha texts. The dance murti is featured in all major Hindu temples of Shaivism, and is a well-known sculptural symbol in India and popularly used as a symbol of Indian culture, as one of the finest illustrations of Hindu art. This form is also referred to as Kuththan (கூத்தன், Kūththaṉ), Sabesan (சபேசன், Sabēsaṉ), and Ambalavanan (அம்பலவாணன், Ambalavāṇaṉ) in various Tamil texts.
The sculpture is symbolic of Shiva as the lord of dance and dramatic arts, with its style and proportions made according to Hindu texts on arts. Tamil devotional texts such as the Tirumurai (The twelve books of Southern Shaivism) state that Nataraja is the form of Shiva in which he performs his functions of creation, destruction, preservation, and is also attributed with maya and the act of blessing his devotees. Thus, Nataraja is considered one of the highest forms of Shiva in Tamil Nadu, and the sculpture or the bronze idol of Nataraja is worshipped in almost all Shiva temples across Tamil Nadu. It typically shows Saiva dancing in one of the Natya Shastra poses, holding various symbols which vary with historic period and region, trampling upon a demon shown as a dwarf (Apasmara or Muyalaka) who symbolizes spiritual ignorance.