Černošín (German: Tschernoschin) is a town in Tachov District in the Plzeň Region of the Czech Republic.

Černošín consists of nine municipal parts (in brackets population according to the 2021 census):[2] The name of the town is probably derived from the personal name Černoš, who was a local lord.

Its tributary, the stream Kosový potok, forms the western municipal border near Třebel and Záhoří, before it merges with the Mže just outside the territory of Černošín.

The development was stopped by the Thirty Years' War, during which the town was heavily damaged and depopulated.

[6] A tourist destination is the ruin of the Volfštejn Castle, located in the woods at the foot of Vlčí hora.