Bärnbach is the smallest city of the district of Voitsberg in the Austrian state of Styria.

The city is popular for its church (designed by Friedensreich Hundertwasser), manual glass manufacturing and coal mining (surface mining).

Magnet of tourism is the Church of Saint Barbara (patron of miners) which was built in 1948 and was renovated by Friedensreich Hundertwasser in 1987.

[3] The principal road through Bärnbach is the B70 ("Packer Straße [de]"), a Landesstraße.

[4] In former times the important industrial locations were the coal mines, the steam-powerplant "Voitsberg III" and the glassworks.