Flag of Birmingham, Alabama
| Proportion | 10:19 |
|---|---|
| Adopted | August 18, 1925 |
| Design | A vertical triband of red (hoist-side and fly-side) and white, with a design featuring a prominent red star centered on the white band. The three bands are in the proportions 4:7:4. |
| Designed by | Idyl King Sorsby |
The city flag of Birmingham was designed by Idyl King Sorsby for the occasion of the semicentennial of the city of Birmingham in 1921. The flag was officially adopted as the city's flag on August 18, 1925.