Floreffe (French pronunciation: [flɔ.ʁɛf]; Walloon: Florefe) is a Walloon municipality located in the Belgian province of Namur. On 1 January 2012 the municipality had 7,883 inhabitants. The total area is 38.89 km², giving a population density of 203 inhabitants per km².
The municipality consists of the following sub-municipalities: Floreffe proper, Floriffoux, Franière, and Soye.
Floreffe is best known as the location of Floreffe Abbey, founded in the 12th century and suppressed during the French Revolution.