Lom (German: Bruch) is a town in Most District in the Ústí nad Labem Region of the Czech Republic.

Lom consists of two municipal parts (in brackets population according to the 2021 census):[2] The name literally means 'quarry'.

The settlement of Lom was established on the road through the Ore Mountains at the end of the 12th century.

Until the 17th century, it was focused on agriculture, since then its history is closely connected with mining of iron ore and lignite.

The town gained a new perspective of survival and further development after 1989 with the decision to create a so-called protective pillar on the town's border, to limit and finally to stop further coal mining in this locality.