Rejštejn (German: Reichenstein) is a town in Klatovy District in the Plzeň Region of the Czech Republic.

Rejštejn consists of nine municipal parts (in brackets population according to the 2021 census):[2] The original German name Reichenstein was created from am reichen Stein (meaning 'at the rich rock') and refers to the gold mining in the area.

The highest point is the mountain Huťská hora at 1,187 m (3,894 ft) above sea level.

In 1584, Rejštejn was promoted by Emperor Rudolf II to a royal mining town and gained independence.

The second notable factory in Klášterský Mlýn was the art glass manufacturer Joh.