This is a list of Belgian football transfers for the 2023 winter transfer window. Only transfers involving a team from the professional divisions are listed, including the 18 teams in the Belgian First Division A and the 12 teams playing in the Belgian First Division B.
The wintertransfer window opened on 1 January 2023 and towards the end of January 2023.
Note that several transfers were announced prior to the opening date. Furthermore, players without a club may join one at any time, either during or in between transfer windows. After the transfer window closes a few completed transfers might still be announced a few days later.
The 2019–20 Belgian First Division A was the 117th season of top-tier football in Belgium.
The 2021–22 season was the 119th season in the existence of K.A.A. Gent and the club's 33rd consecutive season in the top flight of Belgian football. In addition to the domestic league, Gent participated in this season's editions of the Belgian Cup and the UEFA Europa Conference League.
The 2021–22 season was the 118th season in the existence of K.V. Mechelen and the club's third consecutive season in the top flight of Belgian football. In addition to the domestic league, Mechelen participated in this season's edition of the Belgian Cup.
The 2022–23 Belgian Pro League was the 120th season of top-tier football in Belgium. Royal Antwerp were crowned league champions for the first time in 66 years after pipping Genk and Union St-Gilloise on the final day, the first occasion since 1999 that three clubs were still contending the title going in the final match. All three Championship chasers were in the virtual lead in the table at different stages across the final five minutes before Toby Alderweireld's title-clinching goal.
The 2022–23 season was the 35th in the history of K.R.C. Genk and their 28th consecutive season in the top flight. The club participated in the Belgian Pro League and the Belgian Cup.
The 2022–23 season was the 123rd season in the existence of Cercle Brugge K.S.V. and the club's 28th consecutive season in the top flight of Belgian football. In addition to the domestic league, Cercle Brugge also participated in this season's edition of the Belgian Cup.
עזבו: אבובקאר קייטה - שרלרואה [Left: Aboubakar Keita - Charleroi]