Shiva Advaita (Devanagari:à ¤¶à ¤¿à ¤µà ¤¾à ¤¦à ¥Âà ¤µà ¥Âà ¤¤, Tamil: à ®Âà ®¿à ®µà ®¾à ®¤à ¯Âà ®µà ¯Âà ®¤à ®®à ¯Â, à ÂivÃÂdvaitam, , ), also known as or Shaivite qualified nondualism, refers to à Ârëkaá¹Âá¹Âha à ÂivÃÂcÃÂrya's (dated 11th-15th century CE) Southern India Shaivite commentary on the Brahma Sutras, which considers Shiva supreme, and to Appayya's 16th century CE commentary on à Ârëkaá¹Âá¹Âha à ÂivÃÂcÃÂrya's stance.
à Ârëkaá¹Âá¹Âha à ÂivÃÂcÃÂrya (also known as Nëlakaá¹Âá¹Âha à ÂivÃÂcÃÂrya) composed the Srikanta Bhashyam, a commentary on the Brahma Sutras, which became known as à ÂivÃÂdvaita. The time frame of à Ârëkaá¹Âá¹Âha's work is not exactly known, but it is argued to fall somewhere between the 11th and 11 century, with the 14th to 15th century being more likely, according to Duquette. Sri Appayya Dikshita (16th century CE) contributed further to Shiva Advaita by expounding à Ârëkaá¹Âá¹Âha's philosophy in his Sivarka Mani Dipika.
The theory of à Âivadvaita resembles very closely Ramanuja's Vià Âiá¹£á¹ÂÃÂdvaita non-dualism doctrine, but differs in who is considered Supreme. While Ramanuja considers Vishnu to be supreme, à Ârëkaá¹Âá¹Âha considers Shiva supreme. While à Ârëkaá¹Âá¹Âha does not deny Nirguna Brahman, which is central to Advaita, he affirms the supremacy of Saguna Brahman, typical of qualified non-dualism. However, Appayya affirms a form of pure non-dualism, and recasts à Ârëkaá¹Âá¹Âha's work in an effort to establish Shiva Advaita in his à ÂivÃÂdvaitanirá¹Âaya.