The Belgian Fourth Division B was one of the four leagues at the fourth level of the Belgian football league system, the other ones being the Belgian Fourth Division A, C and D. This division existed from the 1952–53 to 2015–16 seasons and was played every year with 16 clubs in each league. The league was replaced by Belgian Second Amateur Division.
| Club | Municipality | Province | Finishing position 2014–15 season[1] | |
|---|---|---|---|---|
| R. Géants Athois | Ath | Hainaut | 16th of third division A | |
| K.A.C. Betekom | Betekom | Flemish Brabant | 1st of Brabant Division One | |
| R. Francs Borains | Boussu | Hainaut | 2nd | |
| FC Ganshoren | Ganshoren | Brussels | 12th | |
| Léopold FC | Uccle | Brussels | 8th | |
| RWDM47 | Sint-Jans-Molenbeek | Brussels | None (newly formed) | |
| R.O.C. de Charleroi-Marchienne | Montignies-sur-Sambre | Hainaut | 1st of Hainaut Division One | |
| Racing Charleroi Couillet Fleurus | Charleroi | Hainaut | 4th of Hainaut Division One | |
| R. Châtelet S.C. | Châtelet | Hainaut | 5th | |
| K.F.C. Duffel | Duffel | Antwerp | 5th of promotion C | |
| K.S.K. Halle | Halle | Flemish Brabant | 5th of Brabant Division One | |
| R.F.C. Tournai | Tournai | Hainaut | 18th of third division A | |
| R.U.S. Rebecquoise | Rebecq | Walloon Brabant | 4th | |
| K. Olympia Voetbalclub Sterrebeek | Sterrebeek | Flemish Brabant | 10th | |
| R.R.C. Waterloo | Waterloo | Walloon Brabant | 9th | |
| K. Wolvertem S.C. | Wolvertem | Flemish Brabant | 11th |
- RWDM's number 5479 was previously held by K. Standaard Wetteren which merged with R.R.C. Wetteren to become R.F.C. Wetteren.
- R. Charleroi CF won the second round of the Belgian interprovincial play-off
- K.S.K. Halle won the Brabant Division One play-off