Cuvette-Ouest (or Western Cuvette) is a department of the Republic of the Congo in the western part of the country. Cuvette-Ouest is the least populated department in the country. It borders the departments of Cuvette, Sangha, and Plateaux, and internationally, Gabon. The capital is Ewo. Principal cities and towns include Kelle.

Cuvette-Ouest has been the site of several outbreaks of the Ebola virus.

Administrative divisions

Cuvette-Ouest Department is divided into one commune and six districts:

Districts

1. Ewo District
2. Kelle District
3. Mbomo District
4. Okoyo District
5. Etoumbi District
6. Mbama District

Communes

1. Ewo Commune