The 1948–49 season was the 46th season of competitive football in Belgium. RSC Anderlechtois won their second Premier Division title.[1] The Belgium national football team played 6 friendly games, of which they won 2 and drew 4.[2]
At the end of the season, K Boom FC and RU Saint-Gilloise were relegated to Division I, while R Stade Louvain (Division I A winner) and RFC Brugeois (Division I B winner) were promoted to the Premier Division. RCS La Forestoise, Stade Waremmien, SK Roeselare and RRC Tournaisien were relegated from Division I to Promotion, to be replaced by R Albert Elisabeth Club Mons, ASV Oostende KM, AS Herstalienne and RU Hutoise FC.
* Belgium score given first
Key
Top scorer: René Thirifays (R Charleroi SC) with 26 goals.