Bannari Amman Temple, Hindu temple in Tamil Nadu, India

Bannari Amman Temple stands at Bannari on National Highway 209, about 12 km from Sathyamangalam on the road to Mysore, at roughly 361 m above sea level. Its gateway carries a lintel with a line of Tamil script and a sign reading "ARULMIGU BANNARI MARIAMMAN THIRUKKOI"; the pillars are painted with a goddess figure and a seated bearded figure, and the upper tier holds three niches with sculpted figures and five rounded finials. Inside are a gopuram, an ardha mandapam, a maha mandapam and a sobana mandapam, with carved work on the pillars.

According to the temple's official HR&CE publication (2025), herders grazing cattle in dense forest noticed one cow regularly releasing milk at a spot beneath a Vengai tree. Clearing the site, they found a self-manifested (swayambhu) form of Mariamman. The shrine grew into a major Mariamman temple; the washerman legend popular in retellings is absent from the verified records.

The goddess Bannari is worshipped as the goddess of rain, an avatar of Shakti, and is honoured as a Vannar woman deity. During the Panguni Kundam festival, devotees walk over a fire pit of embers. The temple is administered by the Hindu Religious and Charitable Endowments Department of Tamil Nadu.

The temple stands on National Highway 209, about 12 km from Sathyamangalam on the road toward Mysore, at roughly 361 m above sea level. The Thimbam hill road begins at the temple. The Kundam fire-walking festival falls in Panguni (March–April), when Erode district declares a local holiday; crowds arrive from Erode, Coimbatore, Salem, Namakkal, other Tamil Nadu districts and Karnataka.

The Tamil source recounts that the goddess's right breast bears a small mark, said to come from an iron crowbar striking the child found in a trough. Worshippers look for this wound during puja. The temple administration is held by the Hindu Religious and Charitable Endowments Department.