Deng Deng National Park is a national park in Cameroon.

Lom Pangar Reservoir lies east of the park.

Deng Deng National Park is located 50 km southeast of Mbam Djerem National Park.

Deng Deng National Park is in the Northern Congolian forest-savanna mosaic ecoregion.

The park is also home to chimpanzees (Pan troglodytes), African forest elephants (Loxodonta cyclotis), hippopotamus (Hippopotamus amphibius), giant pangolin (Smutsia gigantea), and yellow-backed duiker (Cephalophus silvicultor).