Fleurus is a Walloon municipality located in the Belgian province of Hainaut. It has been the site of four major battles.
Fleurus has seven villages:
- Brye (wa: Briye) – Postal code: 6222
- Heppignies (wa: Epniye)
- Lambusart (wa: Lambussåt)
- Saint-Amand (wa: Sint-Amand)
- Wagnelée (wa: Wagnlêye)
- Wanfercée-Baulet (wa: Wanfercêye-Bålet)
- Wangenies (wa: Wanjniye)