The flag of Eritrea (Tigrinya: ሃገራዊት ባንዴራ ኤርትራ, Arabic: علم إريتريا الوطني) is the national flag of the State of Eritrea. It was adopted on 5 December 1995. The flag combines the basic layout and colors from the flag of the Eritrean People's Liberation Front with an emblem of a wreath and an upright olive branch derived from the Eritrean flag from 1952 to 1962.

The green color in the flag stands for the agriculture and livestock of the country, while the blue represents the bounty of the sea. The red stands for the bloodshed in the struggle for Eritrean independence, with the 30 leaves in the wreath representing the thirty years spent in the struggle for independence.