Flag of Guinea-Bissau

Republic of Guinea-Bissau
UseNational flag and ensign
Proportion1:2
Adopted24 September 1973 (1973-09-24)
(de facto)
10 September 1974 (1974-09-10)
(de jure)
DesignOne 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 on 24 September 1973, the day the country proclaimed its independence from Portugal.