Lom (German: Bruch) is a town in Most District in the Ústí nad Labem Region of the Czech Republic. It has about 3,700 inhabitants.

The village of Loučná is an administrative part of Lom.

The name literally means 'quarry'.

Lom is located about 9 kilometres (6 mi) north of Most and 27 kilometres (17 mi) west of Ústí nad Labem. The southern part of the municipal territory with the built-up area lies in the Most Basin and the northern part lies in the Ore Mountains. The highest point is the Loučná mountain at 956 m (3,136 ft) above sea level.

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.

In 1902, Lom became a market town, and in 1938, it became a town. Until 1989, the town was threatened with liquidation due to coal mining. 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.

Historical population

Year Pop. ±% 1869 1,148 —     1880 1,329 +15.8% 1890 2,343 +76.3% 1900 8,475 +261.7% 1910 9,871 +16.5%	Year Pop. ±% 1921 9,693 −1.8% 1930 10,135 +4.6% 1950 6,151 −39.3% 1961 6,102 −0.8% 1970 4,861 −20.3%	Year Pop. ±% 1980 4,042 −16.8% 1991 3,214 −20.5% 2001 3,621 +12.7% 2011 3,730 +3.0% 2021 3,616 −3.1%
Source: Censuses

The I/27 road (the section from Most to Dubí) runs through the town.

Lom is located on the railway line Ústí nad Labem–Litvínov.

The main landmark of Lom is the Church of the Sacred Heart. It was built in the Neo-Renaissance style in 1888.

Other monuments and sights in Lom include a plague column with a pedestal and a relief of St. George from the 15th century, the Chapel of the Holy Trinity from the 1880s, the original mining colony from the end of the 19th century, and a conciliation cross with a crossbow relief from the 13th century.

• Official website