Grand-Reng (French pronunciation: [ɡʁɑ̃ ʁɑ̃]; Walloon: Grand-Rin) is a village of Wallonia and a district of the municipality of Erquelinnes, located in the province of Hainaut, Belgium.

Grand-Reng

It is located on the border with France, on the main road from Mons to Beaumont. Its French neighbour is called Vieux-Reng.

On 13 May 1794, the village was the site of the Battle of Grandreng when Franz Wenzel, Graf von Kaunitz-Rietberg's Austrian army defeated a French army under Louis Charbonnier.

50°20′N 4°04′E / 50.333°N 4.067°E / 50.333; 4.067