Belogradchik Municipality (Bulgarian: Община Белоградчик) is a municipality (obshtina) in Vidin Province, Northwestern Bulgaria, located in the western parts of the so-called Fore-Balkan area.

The area embraces a territory of 411 km2 (159 sq mi) with a population of 7,045 inhabitants, as of December 2009.

[1] The municipality is best known with the Belogradchik Rocks, impressive rock formations located just south of the main town as well as the medieval Belogradchik Fortress situated in the same rocky area.

Belogradchik Municipality includes the following 18 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: An overwhelming majority of the population of Belogradchik Municipality identify themselves as Christians.