Flag of Guinea
| Use | National flag and ensign | 
|---|---|
| Proportion | 2:3 | 
| Adopted | 10 November 1958 | 
| Design | A vertical tricolour of red, yellow and green | 
The national flag of Guinea (French: drapeau national de la Guinée) is a triband of red, yellow, and green. It was adopted on 10 November 1958, with the publication of the country's first Constitution.