Haegen (French pronunciation: [ɛɡən] ⓘ; German: Hägen) is a commune in the Bas-Rhin department in Grand Est in north-eastern France.

[3] Haegen is a mountain village located on the western frontier of Alsace which at this point coincides with the western frontier of the Alemanish dialect area.

Across the Vosges Mountains to the west of the commune is Lorraine.

On the Alsace side, neighbouring communes are Saverne and Gottenhouse to the north-east, and Thal-Marmoutier and Reinhardsmunster to the south-east.

The commune contains the ruined remains of a twelfth-century castle, one of the earliest surviving castles in the North Vosges region, and of a fourteenth-century smaller fortress.