Authorised 28 July 1952
A Gold color metal and enamel device 1 3/16 inches (3.02 cm) in height overall consisting of a shield blazoned: Gyronny of six pieces Gules and Or with a martlet in the chief piece Azure. Attached below and to the sides of the shield a Gold scroll inscribed "HOOMANU I LUNA" in Black letters.
The shield is red and yellow for Artillery. The partition of the shield "Gyronny" symbolizes the organization's place of activation and home station, Hawaii, as the "Crossroads of the Pacific." The martlet in having no feet symbolizes that the organization did not remain in one place during World War II and alludes to the Central Pacific, Leyte and Ryukyus campaigns in which it participated.
The distinctive unit insignia was originally approved for the 97th Antiaircraft Artillery Gun Battalion on 28 July 1952. It was redesignated for the 97th Antiaircraft Artillery Battalion on 6 February 1957. It was redesignated for the 97th Artillery Group and amended to correct the symbolism on 12 October 1967.