The South Western Ghats montane rain forests is an ecoregion in South India, covering the southern portion of the Western Ghats in Karnataka, Kerala and Tamil Nadu at elevations from 1,000 to 2,695 m. Annual rainfall in this ecoregion exceeds 2,800 mm (110 in).

The Western Ghats, also known as the Sahyadris, is a mountain range that stretches 1,600 km (990 mi) along the western coast of the Indian peninsula. Covering an area of 160,000 km2 (62,000 sq mi), it traverses the states of Gujarat, Maharashtra, Goa, Karnataka, Kerala and Tamil Nadu. The mountains form an almost continuous chain of mountains along the western edge of the Deccan Plateau from the Tapti river to the southern tip of the Indian peninsula at Kanniyakumari. The Western Ghats meets with the Eastern Ghats at Nilgiris before continuing south.