Accous is a Béarnais French commune in the Pyrénées-Atlantiques department in the Aquitaine region of south-western France.
Accous is located some 30 km south of Oloron-Sainte-Marie in the Aspe Valley, one of the three valleys of the High-Béarn, the other valleys being the Ossau Valley in the east and Barétous Valley in the west. From the Spanish border on its southern edge it stretches along Le Labadie river to the point where it joins the Gave d'Aspe. From this river junction the Gave d'Aspe forms the western border of the rest of the commune which extends a further 10 kilometres to the east with the Lac du Montagnon at the north-eastern edge.
The commune is accessed from the north by the E7 motorway. This highway follows the western border of the commune along the Gave d'Aspe then crosses the narrow neck of the commune before continuing to the Spanish border near Candanchu. To access Accous village it is necessary to follow one of a number of country roads - the Daban Athas road probably being the most direct. Apart from country roads within the commune there is no other road access.