The flag of the Commonwealth of the Northern Mariana Islands was adopted in July 1985, by the Second Northern Marianas Constitution. The NMI flag was originally designed by Taga during the year 1985. Later during that year, they finalized the draft of the flag in the last CNMI constitutional convention. This was the most symbolic moment of the annexation of the CNMI.

The flag consists of three symbols: a star representing the United States, a latte stone representing the Chamorros, and a mwarmwar (decorative wreath) representing the Carolinians; the blue background represents the Pacific Ocean and the Mariana Trench.

Historical flags

• During Spanish East Indies.

• Proposed flag for German New Guinea.

• The flag of the United Nations was used in the NMI during 1947–1965

• Flag of the Trust Territory of the Pacific Islands was used in the NMI 1965–1972

• Unofficial flag, 1972–1976. Official flag, 1976–1981

• 1976–1989 flag