Estuaire is the most populous of Gabon's nine provinces.

The provincial capital is Akanda, but the largest city is Libreville, Gabon's national capital.

Estuaire is at the northwestern corner of Gabon, its western edge as the shores of the Gulf of Guinea.

To the north, Estuaire borders the Republic of Equatorial Guinea: the Litoral Province in the northwest, and the Centro Sur Province in the northeast.

Domestically, it borders the following provinces: Estuaire is divided into 5 departments: This Gabon location article is a stub.