Town centre
Location in the Czech Republic
Coordinates: 50°13′26″N 12°11′42″E / 50.22389°N 12.19500°E / 50.22389; 12.19500
Country Czech Republic
RegionKarlovy Vary
DistrictCheb
First mentioned1270
Government
 • MayorVítězslav Kokoř
Area
 • Total
55.86 km2 (21.57 sq mi)
Elevation
666 m (2,185 ft)
Population
 (2025-01-01)
 • Total
12,684
 • Density227.1/km2 (588.1/sq mi)
Time zoneUTC+1 (CET)
 • Summer (DST)UTC+2 (CEST)
Postal code
352 01
Websitewww.muas.cz

(Czech pronunciation: [aʃ]; German: Asch) is a town in Cheb District in the Karlovy Vary Region of the Czech Republic. It has about 13,000 inhabitants. It is located in the Fichtel Mountains, in the westernmost part of the country, on the Czech-German border.

The town grew rapidly due to industrialisation in the second half of the 19th and first half of the 20th centuries, but after World War II and the expulsion of German-speaking inhabitants, the town's population and importance decreased significantly.