| Mudumalai National Park | |
|---|---|
| Mudumalai Tiger Reserve | |
 Bengal tiger in Mudumalai National Park | |
   | |
| Location | Nilgiri District, Tamil Nadu, India |
| Nearest city | Gudalur, Nilgiris |
| Coordinates | 11°36′N 76°30′E / 11.6°N 76.5°E |
| Area | 321 km2 (124 sq mi) |
| Elevation | 850–1,250 m (2,790–4,100 ft) |
| Established | 1940 |
| Governing body | Tamil Nadu Forest Department |
| Website | https://www.forests.tn.gov.in/ |
Mudumalai National Park is a national park in the Nilgiri Mountains in Tamil Nadu in southern India. It covers 321 km2 (124 sq mi) at an elevation range of 850–1,250 m (2,790–4,100 ft) in the Nilgiri District and shares boundaries with the states of Karnataka and Kerala. A part of this area has been protected since 1940. The national park has been part of Nilgiri Biosphere Reserve since 1986 and was declared a tiger reserve together with a buffer zone of 367.59 km2 (141.93 sq mi) in 2007. It receives an annual rainfall of about 1,420 mm (56 in) and harbours tropical and subtropical moist broadleaf forests with 498 plant species, at least 266 bird species, 18 carnivore and 10 herbivore species. It is drained by the Moyar River and several tributaries, which harbour 38 fish species.
Traffic on three public roads passing through the national park has caused significant roadkills of mammals, reptiles and amphibians. The park's northern part has been affected by several wildfires since 1999.