Monceau-sur-Sambre (French pronunciation: [mɔ̃so syʁ sɑ̃bʁ], lit.

'Monceau on Sambre'; Walloon: Moncea-so-Sambe) is a town of Wallonia and a district of the municipality of Charleroi, located in the province of Hainaut, Belgium.

Monceau is located west of Charleroi centre, to the north of the N90 motorway and east of the R3.

The parish church is dedicated to Saint Louis de Gonzague.

The Château de Monceau-sur-Sambre,[1] with its park and arboretum, lies to the south of the suburb, close to the N90.