Erquelinnes (French pronunciation: [ɛʁkəlin] ; Walloon: Erkelene) is a municipality of Wallonia located in the province of Hainaut, Belgium.

Located on the border with France, where the commune of Maubeuge lies, Erquelinnes had a total resident population of 9,549, in 2006. The total area is 44.23 km (17.08 sq mi) which gives a population density of 216 inhabitants per km.

The municipality consists of the following districts: Bersillies-l'Abbaye, Erquelinnes, Grand-Reng, Hantes-Wihéries, Montignies-Saint-Christophe, and Solre-sur-Sambre.

Heritage

• The Solre-sur-Sambre Castle