| Flag of Hainaut | |
| |
| Adopted | ? |
|---|---|
| Designed by | ? |
| Proportions | {{{proportions}}} |
The province of Hainaut does not have an official flag but uses the banner of arms as the unofficial flag of the province.
The banner of arms unofficially used by the Province of Hainaut as its flag is: Quarterly, 1. and 4. Or a lion sable armed and langued gules, 2. and 3. Or a lion gules armed and langued azure", that is quartered Flanders and Holland.
Symbolism[]
Black, yellow, and red are the colors of the Belgian flag.