Kumaka is a community in Barima-Waini region, in northern Guyana. It stands about 35 km southeasterly of Baramanni and about 18 km inland from the Atlantic coast, and at an altitude of 30 metres.
Kumaka is site of Kumaka District Hospital. It adjoins the village of Santa Rosa.
Coordinates: 7°39′N 58°57′W / 7.650°N 58.950°W / 7.650; -58.950