Montclar (Catalan pronunciation: [muŋˈkla]) is a municipality in the comarca of Berguedà, Catalonia.

In 1240, King James I of Aragon granted the land to Pere de Breda, though by 1309, it was once again a possession of the crown.

The municipality's parochial church, in the Romanesque style, is dedicated to Sant Martí.

It also has a later, hip-roofed bell tower, and conserves a baroque altar and other neoclassical elements in the interior.

Montclar's town festival is celebrated in January, to coincide with the feast day of Saint Sebastian.