Lom Municipality (Bulgarian: Община Лом) is a frontier municipality (obshtina) in Montana Province, Northwestern Bulgaria, located along the right bank of Danube river in the Danubian Plain.

It is named after its administrative centre — the town of Lom which is one of the important Bulgarian river ports.

The municipality encompasses a territory of 323.89 km2 (125.05 sq mi) with a population of 27,294 inhabitants, as of February 2011.

[1] Lom Municipality includes the following 10 places (towns are shown in bold): The following table shows the change of the population during the last four decades.

According to the latest Bulgarian census of 2011, the religious composition, among those who answered the optional question on religious identification, was the following: