Bernissart is a municipality of Wallonia located in the province of Hainaut, Belgium.
On January 1, 2006, Bernissart had a total population of 11,458. The total area is 43.42 km², which gives a population density of 264 inhabitants per km².
The municipality consists of the following districts: Blaton, Bernissart, Harchies, Pommerœul, and Ville-Pommerœul.