Břasy (German: Bschas) is a municipality and village in Rokycany District in the Plzeň Region of the Czech Republic.

It lies in the Plasy Uplands in a largely deforested plateau, which falls sharply towards the valley of the Berounka River in the west.

The slopes along the Berounka and the Dírecký potok are largely covered with forest, while the central part of Břasy is largely forestless, except for scattered woods between the Břasy proper, Vranovice, Kříše and Stupno which replaced the abandoned coal mines and other industrial facilities.

The name of Břasy originally applied only to small workers' colony which was annexed by Vranov in 1918.

In 1933 statue in memory of miners by leftist sculptor Emanuel Famíra was built in Vranov, only to be demolished by German authorities in 1941.

Post-World War II development was also facilitated by Czechoslovak army's presence in Břasy (ground radar station, after 1989 abandoned).

[3] Unlike Stupno and Břasy it did not enter the contiguous built-up agglomeration but it also underwent rapid population growth as a result of industrial development.

[3] It also remains territorially distinct but the industrial development took place in the village proper and population growth occurred here too.

Located in the valley of the Berounka it never really lost its rural character despite some coal and iron ore mining.