Col de Marie-Blanque (elevation 1,035 m (3,396 ft)) is a mountain pass in the western Pyrenees in the department of Pyrénées-Atlantiques in France.

The pass is situated south-east of Oloron-Sainte-Marie and connects the valleys of the Aspe and the Ossau rivers.

The climb is 9.3 km (5.8 mi) long at an average gradient of 7.7% (height gain – 715 m (2,346 ft)).

[2] From Louvie-Juzon (east), the climb is 15.0 km (9.3 mi) long.

En route, the climb passes the Plateau de Bénou.