Uthangarai (also spelled Oothangarai) is a prominent town and rural taluk headquarters located in the southeastern corner of the Krishnagiri district in Tamil Nadu.
​Geographically, it acts as the gateway connecting Krishnagiri with the neighboring Tirupattur and Dharmapuri districts. The town sits along the crucial Ponnaiyar (Thenpennai) River basin, giving it a highly distinct natural and economic landscape compared to the industrial highway grids of Hosur or Shoolagiri.