Back Vlag van Guinee-Bissau AF የጊኒ-ቢሳው ሰንደቅ ዓላማ AM علم غينيا بيساو Arabic علم غينيا بيساو ARZ Bandera de Guinea-Bisáu AST Qvineya-Bisau bayrağı AZ Сцяг Гвінеі-Бісау BE Сьцяг Гвінэі-Бісаў BE-X-OLD Национално знаме на Гвинея-Бисау Bulgarian গিনি-বিসাওর ফিরালহান BPY
 | |
| Use | National flag and ensign    |
|---|---|
| Proportion | 1:2 |
| Adopted | 24 September 1973 (de facto) 10 September 1974 (de jure) |
| Design | One vertical red line on the hoist side charged with a black five-pointed star; two horizontal lines on the fly side (yellow and green) |
The national flag of Guinea-Bissau was adopted in 1973 when independence from Portugal was proclaimed.