Vardousia is a former municipality in Phocis, Greece. Since the 2011 local government reform it is part of the municipality Dorida, of which it is a municipal unit. Population 2,216 (2001). The seat of the municipality was in Krokyleio. It was named after the mountain Vardousia, which is located in the municipal unit.
Vardousia is a mountain in northwestern Phocis and southwestern Phthiotis, Greece. Its highest peak, Korakas reaches above sea level, making it the second-tallest summit in Central Greece after Giona. It is a southern extension of the Pindus mountains. It is divided into three main parts: Northern Vardousia, whose highest peak is Sinani at , the very steep Western Vardousia, whose highest peak is Soufles at , and Southern Vardousia, with the highest peak of Korakas. The whole range measures about from north to south.
The Vardousia is drained by tributaries of the river Spercheios to the north, the Mornos to the east and south, and the Evinos to the west. The Panaitoliko mountains are to the west, Tymfristos to the northwest, Oeta to the east and Giona to the southeast.
The municipal unit Vardousia, named after the mountain, covers the western part of the mountain, and includes the villages Artotina and Dichori. The municipal unit Lidoriki covers the southern part, and includes the villages Dafnos, Diakopi, Kallio and Koniakos. The village Athanasios Diakos lies in the east, and Anatoli and Dafni in the north.