K. Diegem Sport
| Full name | Koninklijke Diegem Sport | |
|---|---|---|
| Founded | 1943 | |
| Ground | Gemeentelijk Sportstadion | |
| Capacity | 4,000 | |
| Chairman | Bert Van Weyenberge | |
| Manager | Cédric Demeulenaere | |
| League | Belgian Division 1 | |
| 2024–25 | Division 2 VV B, 3rd of 16 (promoted via play-offs) | |
| Website | http://www.kdiegemsport.be/ | |
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Koninklijke Diegem Sport is a Belgian association football club based in Diegem, Flemish Brabant. The team set to playing in the Belgian Division 1 from 2025–26, the third tier of Belgian football after promotion from Belgian Division 2 in 2024–25. The club was founded in 1943 when two clubs from Diegem merged, namely Diegem-Star and Diegem-Lo. They play at the Gemeentelijk Sportstadion in Diegem.