Polná (German: Hirschfeld) is a village in Karlovy Vary Region, Czech Republic.

Polná lies 2.5 kilometres southwest from Hazlov, about 535 meters above sea level.

It neighbour with Hazlov to the east, with Lipná to the north, with Táborská to the southeast and with Libá to the southwest.

From 1850 was part of Aš District, and few years later create its own municipality, with Podílná and Franky.

In the 1960s a border-guard (Pohraniční stráž) base, was built close to the village.