Březno (German: Priesen) is a municipality and village in Chomutov District in the Ústí nad Labem Region of the Czech Republic.

Březno consists of eight municipal parts (in brackets population according to the 2021 census):[2] Březno is located on the railway line Rakovník–Jirkov.

The Březno railway tunnel was built on a reallocated train track in 2007.

The tunnel is 1,758 m (5,768 ft) long and it was the longest railway tunnel in the Czech Republic until 2018.

This Ústí nad Labem Region location article is a stub.