Minneriya National Park is a national park in the North Central Province of Sri Lanka. The area was designated as a national park in 1997, having been originally declared as a wildlife sanctuary in 1938. The reason for declaring the area as protected is to protect the catchment of Minneriya tank and the wildlife of the surrounding area. The tank is of historical importance, having been built by King Mahasen in third century AD.

The park is a dry season feeding ground for the elephant population dwelling in the forests of Matale, Polonnaruwa, and Trincomalee districts. The national park’s faunal species include 24 species of mammals, 160 species of birds, 9 species of amphibians, 25 species of reptiles, 26 species of fish, and 75 species of butterflies.

Large numbers of Sri Lankan elephants are attracted to grass fields on the edges of the reservoir during the dry season. The Minneriya tank contributes to sustain a large herd. Elephants gathered here are numbering around 150–200.

The park is an important habitat for the two endemic monkeys of Sri Lanka: purple-faced langur and toque macaque.[4] Large herbivorous mammals such as Sri Lankan sambar deer and Sri Lankan axis deer frequent the park. Rare and endangered species such as Sri Lankan leopard and Sri Lankan sloth bear inhabit in Minneriya. Minneriya is one of the areas where the gray slender loris is reportedly found in Sri Lanka.

The Minneriya reservoir is an important habitat for large water birds such as lesser adjutant, painted stork, and spot-billed pelican. Minneriya is a dormitory for many residents as well as migrant bird species. Flocks of 2000 little cormorants have been reported. Great white pelican, ruddy turnstone, and grey heron are the other water birds here. Among the endemic birds are Sri Lanka junglefowl, Sri Lanka hanging parrot, brown-capped babbler, Sri Lanka grey hornbill, black-crested bulbul and crimson-fronted barbet.