Maiko National Park is a national park in the Democratic Republic of the Congo. It lies in one of the most remote forest areas of the country and covers 10,885 km2 (4,203 sq mi). The park is divided into three sectors, straddling the states of Nord Kivu, Province Orientale and Maniema. Three of the country's spectacular endemic animals occur here: the Grauer's gorilla, the okapi, and the Congo peafowl. Maiko is also an important site for the conservation of the African forest elephant, eastern chimpanzee and the endemic aquatic genet.

The eastern lowland gorilla or Grauer's gorilla is a Critically Endangered subspecies of eastern gorilla endemic to the mountainous forests of eastern Democratic Republic of the Congo. Important populations of this gorilla live in the Kahuzi-Biega and Maiko National Parks and their adjacent forests, the Tayna Gorilla Reserve, the Usala forest and on the Itombwe Massif.