Moyen-Ogooué is one of Gabon's nine provinces. It covers an area of 18,535 km² (7,156 sq mi). The provincial capital is Lambaréné. As of 2013, 69,287 people lived there.^[2]

Unlike any other province of Gabon, Moyen-Ogooué has neither seacoast nor a foreign border. It borders the following provinces:

• Estuaire Province – northwest
• Woleu-Ntem Province – north-northeast
• Ogooué-Ivindo Province – east
• Ogooué-Lolo Province – southeast, at a quadripoint
• Ngounié Province – south
• Ogooué-Maritime Province – west-southwest

Moyen-Ogooué borders all but two of the rest of Gabon's provinces, thus more than any other province.

Moyen-Ogooué is divided into 2 departments:

• Abanga-Bigne Department (capital Ndjolé)
• Ogooué et des Lacs Department (capital Lambaréné)

• Petringa, Maria. Brazza, A Life for Africa. Bloomington, IN: AuthorHouse, 2006. ISBN 978-1-4259-1198-0. Describes Pierre Savorgnan de Brazza's extensive explorations of the Ogoué River basin.