Verrerie de Masnières, Historic glassworks in Masnières, France

Verrerie de Masnières is a glassworks situated along the Canal de Saint-Quentin with industrial buildings dedicated to glass production and manufacturing. The complex includes large furnaces and production areas that together form a working factory system.

François Boulanger founded the glassworks in 1818 on the grounds of a former castle park, using multiple large furnaces for window and bottle glass production. The site passed through several owners over the following decades, shaping its evolution.

The site is not open to visitors; the glassworks is an active factory, so its production of perfume, cosmetic and pharmaceutical bottles is seen only from outside. The name Masnières remains attached to the plant through its French subsidiary, Les Verreries de Masnières, bought by the Austrian group Stölzle in 2014.

The glassworks is not open to the public, so there are no tours of the production halls. Visitors can view the brick buildings, the two tall chimneys and the canal-side setting from the outside, along the Canal de Saint-Quentin. The site lies in Masnières, about 10 km from Cambrai.

The 1847 liquidation sale listed the château at 30,000 francs, the glassworks at 40,000 and a pavilion at 10,000, so the factory was worth more than the castle it replaced. The site had four eight-place furnaces, two for window glass and two for bottles.