Flag of Belgium
 | |
| Use | National flag |
|---|---|
| Proportion | 13:15 |
| Adopted | January 23, 1831 |
| Design | A vertical tricolour of black, yellow, and red. Technically the national flag, but rarely seen. |
.svg) Variant flag of Belgium | |
| Use | National flag and civil ensign  |
| Proportion | 2:3 or similar |
| Design | As above. Much more common than the official version. |
 Variant flag of Belgium | |
| Use | State ensign |
| Proportion | 2:3 |
The national flag of Belgium has three equal vertical bands of black, yellow, and red. The colours were taken from the colours of the Duchy of Brabant.
| Sovereign states |
|  |
|---|---|---|
| States with limited recognition | ||
| Dependencies and other entities | ||
| Other entities | ||
