The national flag of Dominica was adopted on 3 November 1978, with some small changes having been made in 1981, 1988, and 1990.

The original flag was designed by playwright Alwin Bully in early 1978 as the country prepared for independence.

The flag, adopted in 1978, features the national bird emblem, the sisserou parrot (Amazona imperialis), which also appears on the coat of arms of Dominica as two supporters in the achievement, granted on 21 July 1961.

The cross represents the Trinity and Christianity, with its three colours symbolising the natives, the fertile soil, and the pure water.

The flag of Dominica, along with other national symbols, was the focus of a government-sponsored "Emblems Week" in 2016.