Florenville (French pronunciation: [flɔʁɑ̃vil] ⓘ; Gaumais: Floravile) is a city and municipality of Wallonia located in the province of Luxembourg, Belgium.

The total area is 146.91 km2, giving a population density of 38.38 inhabitants per km2.

It is located on the Semois River, facing the French border.

The municipality consists of the following districts: Chassepierre, Florenville, Fontenoille, Lacuisine, Muno, Sainte-Cécile, and Villers-devant-Orval.

Other population centers include: Azy, Conques, Laiche, Martué, Lambermont, Le Ménil, and Watrinsart.