Fosses-la-Ville (; ) is a city and municipality of Wallonia located in the province of Namur, Belgium.
On January 1, 2018, Fosses-la-Ville had a total population of 10,449. The total area is 63.24 km<sup>2</sup> which gives a population density of 165 inhabitants per km<sup>2</sup>.
The municipality consists of the following districts: Aisemont, Fosses, Le Roux, Sart-Eustache, Sart-Saint-Laurent, and Vitrival.