This is a list of Belgian football transfers for the 2013 summer transfer window.
Only transfers involving a team from the Belgian Pro League are listed.
The summer transfer window will open on 1 July 2013, although some transfers took place prior to that date.
Players without a club may join one at any time, either during or in between transfer windows.
The transfer window ends on 2 September 2013, although a few completed transfers could still be announced a few days later.
After the end of the 2012–13 season, several players will return from loan to another club or will not have their contracts extended.
[34] These will be listed here, together with other players for which the date is also not specified.