Balsareny (Catalan pronunciation: [bəlsəˈɾɛɲ]) is a municipality in the North of the comarca of Bages in the province of Barcelona, Catalonia, Spain.

[4] The village developed around the castle, which was built at a strategic point at the confluence of the river Mujal with the Llobregat, but most people lived in dispersed masias (farms).

The romanesque Church of St. Mary dates from late 13th century, but the building has undergone many transformations since then.

Along with the Manresa-Berga railway (1885, closed down 1973), this contributed toward a flourishing textile industry, though this has now almost disappeared.

In 1945 the extraction of the rich layers of potassium salts (sylvite and carnallite) started, and today this remains a major employer, but many other small and medium enterprises have also been created.