Lake Manyara National Park is a Tanzanian national park located both in Arusha Region and Manyara Region, Tanzania. The two administrative regions have no jurisdiction over the parks. The park is governed by the Tanzania National Parks Authority. The majority of the land area of the park is a narrow strip running between the Gregory Rift wall to the west and Lake Manyara, an alkaline or soda-lake, to the east.

The park consists of 330 km2 (130 sq mi) of arid land, forest, and a soda-lake which covers as much as 200 km2 (77 sq mi) of land during the wet season but is nearly nonexistent during the dry season.

Lake Manyara National Park is known for the flamingos that inhabit the lake. During the wet season they inhabit the edges of the lake in flocks of thousands but they are not so present during the dry season.

More than 400 species of birds inhabit the park and many remain throughout the year. Because of this Lake Manyara National Park is a good spot for bird watching. Visitors to the park can expect to see upwards of 100 different species of bird on any day.