Belgian Democratic Union
| Leaders | Max Bastin, Pierre Clerdent |
|---|---|
| Founded | 1944 |
| Dissolved | 1946 |
| Split from | Catholic Party |
| Merged into | Belgian Socialist Party |
| Headquarters | Brussels |
| Ideology | Social democracy Christian democracy Christian left Belgian unionism |
| Political position | Centre-left |
| Colours | Fucsia |
The Belgian Democratic Union (Union Démocratique Belge, UDB; Belgische Democratische Unie, BDU) was a short-lived centre-left political party in Belgium which existed from 1944 to 1946. Aimed at uniting left-leaning Christian Democrats with moderate socialists and others, the movement adhered to a programme which it described as "labourism" (travaillisme). It failed to achieve an electoral breakthrough in Belgium's first postwar elections in 1946 and collapsed shortly afterwards.