| Jacques Delors building | |
| Building Type: | Office building |
| Current Tenants: | Economic and Social Committee Committee of the Regions |
| Address: | Rue Belliard / Belliardstraat 99–101 |
| Location Town: | 1040 City of Brussels, Brussels-Capital Region |
| Location Country: | Belgium |
| Coordinates: | 50.8404°N 4.3775°W |
The Jacques Delors building is an office building in the European Quarter of Brussels, Belgium, which houses the European Economic and Social Committee and the Committee of the Regions. It is located at 99–101, rue Belliard/Belliardstraat, next to Leopold Park, and was formerly called the Belliard building.
The building housed the Brussels activities of the European Parliament until the 1990s, when these functions were moved to the new Espace Léopold. In the 2000s, it was renovated for use by the two Committees. In 2006, it was renamed the Jacques Delors building (abbreviated 'JDE'), after Jacques Delors, former President of the European Commission, who was the most prominent founder of the Committee of the Regions.