Gus
Gus is a masculine name, often a diminutive for Angus, August, Augustine, or Augustus, and other names (e.g. Aengus, Argus, Fergus, Ghassan, Gustav, Gustave, Gustafson, Gustavo, Gussie).
It can also be used as the adaptation into English of the popular Greek name (of Latin origin) Kostas or Konstantinos (Constantin), especially amongst Greek immigrants in English-speaking countries, probably due to similarity in the sound.
Gus may refer to:

People
Given name
Gus Arnheim (1897–1955), American pianist, bandleader and songwriter
Gus Boulis (1949–2001), Greek male murder victim
Gus Edwards (vaudeville) (1878–1945), German-born American songwriter, vaudevillian and music producer, born Gustave Schmelowsky
Gus Edwards (American football) (born 1995), American football player
Gus Greenbaum (1893–1958), American gangster
Gus Hall (1910–2000), longtime leader of the Communist Party USA, born Arvo Kustaa Halberg
Gus Johnson (basketball) (1938–1987), American National Basketball Association player
Gus Johnson (jazz musician) (1913–2000), American jazz drummer
Gus McNaughton (1881–1969), British actor
Gus Pepa (born 1967), founding member of thrash metal band Death Angel
Gus Sonnenberg (1898–1944), American football player and professional wrestler
Gus Triandos (1930–2013), former Major League Baseball player
Gus Van Sant (born 1952), American film director, photographer, musician and author
Gus Varland (born 1996), American baseball player
Gus Weinberg (c. 1865–1952), actor, writer, and composer appearing in early-twentieth-century American films
Gus Williams (basketball) (born 1953), American basketball player
Gus Williams (musician) (1937–2010), Australian country singer, born Kasper Gus Ntjalka Williams
Gus Zernial (1923–2011), American Major League Baseball player

Nickname
Greg Adams (ice hockey, born 1963), Canadian former National Hockey League player
Gus Bell (1928–1995), American Major League Baseball player
Gus Cannon (1883–1979), American blues musician
Gus Dorner (1876–1956), American Major League Baseball pitcher
Gus Frerotte (born 1971), American football player
Phil Gould (born 1958), Australian rugby league broadcaster, journalist, administrator and former player and coachreenlee]] (1893–1952), Negro league baseball team owner and African-American businessman
Gus Grissom (1926–1967), one of the seven original American astronauts, killed in the Apollo 1 fire
Gus Hansen (born 1974), professional Danish poker player
Gus Henderson (1889–1965), American football coach
Gustav A. Hoff (1852–1930), German-born American businessman and politician
Gus Johnson (sportscaster) (born 1967), American sports announcer
Gus Johnson (comedian) (born 1995), Youtube Personality and comedian
Gus Kahn (1886–1941), American songwriter, lyricist and musician
Gus Kelly (1877–1951), Irish cricketer
Gus Kenworthy (born 1991), British-born American freestyle skier, 2014 Olympic silver medalist
Gus Ketchum (1897–1980), American professional baseball pitcher with the 1922 Philadelphia Athletics
Gus MacPherson (born 1968), Scottish football manager and former player
Gus Mancuso (1905–1984), American baseball player, coach, scout and radio sports commentator
Gus Mears (1873–1912), English businessman and founder of Chelsea F.C.
Gus Meins (1893-1940), German-American director
Gus Mortson (1925–2015), former National Hockey League defenceman
Gus O'Donnell, Baron O'Donnell (born 1952), British former senior civil servant and economist
Gus Poyet (born 1967), Uruguayan former footballer
Gus Sorola (born 1978), American actor, Founding member of Rooster Teeth
Gus Suhr (1906–2004), American Major League Baseball player
Gus Weyhing (1866–1955), American Major League Baseball pitcher
Gus Williams (vaudeville) (1848–1915), American comedian and songwriter
Gus Williams (outfielder) (1888–1964), German-American Major League Baseball player
Gus Williams (pitcher) (1870–1890), Major League Baseball pitcher
Gus Winckel (1912–2013), Dutch World War II soldier
Gus Yatron (1927–2003), twelve-term member of the United States House of Representatives from Pennsylvania

Stage name
Gus Black, singer-songwriter Anthony Penaloza, formerly known simply as Gus
Gus G or Gus Gus, Greek heavy metal guitarist Kostas Karamitroudis (born 1980)

Fictional characters
Gus Aitoro, a character in Guiding Light
Gus Borden, a character in Get a Life
Gus Carmichael, a character in Tracy Beaker Returns
Gus Charnley, a character in Born to Be Wild
Gus Cruikshank, a character in Love
Gus Duncz, a character in Mission Hill
Gus Fring, a character in Breaking Bad
Gus Gold, a character in the 1989 American action comedy movie Speed Zone
Gus Goose, Donald Duck's second cousin
Gus Gorman, a character in Superman III
Gus Grav, former antagonist from the animated series Bakugan: New Vestroia and Bakugan: Mechtanium Surge
Gus Grimly, a character in Fargo
Gus Griswald, a character in Recess
Gus Hedges, a character in Drop the Dead Donkey
Gus McCrae, the main character in Lonesome Dove
Gus Matthews, the main character in the film The Benchwarmers
Professor Gus Nikolais, a character in Lorenzo's Oil
Gus Polinski, the lead musician of a polka band in Home Alone
Gus Porter, a character in The Owl House
Gus Smith, a character in The Birth of a Nation
Gus Smith, a character in Eastenders
Augustus "Gus" Waters, a character in The Fault in Our Stars
Gus, one of two mice sidekicks in Cinderella
Gus, a character in Cats
Gus, The mascot for the Minor League Baseball team Fredericksburg Nationals.
Gus, a character in Psych
Gus the groundhog, "spokesgroundhog" for the Pennsylvania Lottery
Gus, a character in Robotboy
Gus, a character in Andi Mack
Gus, the fireman in Leave It to Beaver
Gus, the bartender in The Cleveland Show
Gus Honeybun, a rabbit who was a mascot for ITV franchises Westward and TSW
Gus, a character in A Troll in Central Park
Gus, a character in Crazy Taxi
Gus the forklift driver, from the video game Half-Life
Gus, a character in Sweet Tooth
Gus the Gummy Gator, a character in Ryan's World
Gus, a character in Groundhog Day
Gus, the main character in The Ref
Mr. Gus from Uncle Grandpa
Gus, a sometimes generated name in Pit People

Other
Gus (1976 film), about a football-playing mule
Gus, a polar bear at the Central Park Zoo in New York City (1985-2013)
GUS the eagle, mascot of Georgia Southern University

See also
Gussie