(born Arvo Kustaa Halberg; October 8, 1910 – October 13, 2000) an American activist who served as the General Secretary of the Communist Party USA from 1959 to 2000.

Virgil Ivan "Gus" Grissom (April 3, 1926 – January 27, 1967) was an American engineer and pilot in the United States Air Force, as well as one of the original men, the Mercury Seven, selected by the National Aeronautics and Space Administration for Project Mercury, a program to train and launch astronauts into outer space.

Gustav Gerson Kahn (November 6, 1886October 8, 1941) was an American lyricist who contributed a number of songs to the Great American Songbook, including "Pretty Baby", "Ain't

Persistently pessimistic, negative, and morose.

Gustavus Cannon (September 12, 1883 – October 15, 1979) was an American blues musician who helped to popularize jug bands (such as his own Cannon's Jug Stompers) in the 1920s and 1930s.

Gustavo "Gus" Arriola (July 17, 1917 – February 2, 2008) was an American comic strip cartoonist and animator, primarily known for the comic strip Gordo, which ran from 1941 through 1985.

(né Edelstein; September 20, 1901 – September 26, 1966) an American cartoonist known for two popular, long running comic strips, The Gumps and Dondi.

Gus Green Van Sant Jr. (born July 24, 1952) is an American filmmaker, photographer, painter, and musician who has earned acclaim as an independent filmmaker.

Gustavo Fring is a fictional character portrayed by Giancarlo Esposito in the Breaking Bad franchise, serving as one of the main antagonists in the crime drama series Breaking Bad and a major character in its prequel Better Call Saul.

Augustus Richard Kenworthy (born October 1, 1991) is a British-American former freestyle skier, actor, and YouTuber.

Gustavo Augusto Poyet Domínguez (born 15 November 1967) is a Uruguayan professional football manager and former footballer who most recently managed Greece.

Arthur Gustavo Malzahn III (born October 28, 1965) is an American football coach who is the offensive coordinator at Florida State.

Gustavo Raul "Gus" Sorola III (born February 22, 1978) is an American actor and podcast host.

(born January 19, 1993) an American actor.

Brendan Patrick Rice (born March 11, 1997), better known by his stage name Gus Dapperton, is an American singer and songwriter from Warwick, New York.

(born Kostas Tritchonis; November 21, 1937) an American actor, dancer, and director.