栋古是刚果共和国的城镇，由利夸拉省负责管辖，位于该国东北部乌班吉河畔，距离首府因普丰多约50公里，毗邻与刚果民主共和国接壤的边境，人口估计约10,000。

Dongou is a city and seat of Dongou District in the Likouala Region of northeastern Republic of the Congo.

Dongou was the first capital of the region of "Oubangui inférieure" when it was in French Congo. At independence on 1960, it became the economic capital of Likouala region. Now, Dongou's population is over 10,000. Dongou receives two rivers: Oubangui with white water, and Motaba, with black water.