CHATEAU-D'OEX, resort, Switzerland, 202 m. from Mon treux, in the Sarine valley, 3,182 feet above sea-level, below the north-west end of the Bernese Oberland. Pop. 3,464. The castle has been replaced by a church and the village has many attractive chalets scattered on the hillside, which are enriched with pine woods. The village is much frequented both in summer and in winter, and summer and winter sports are well developed.