Mugsy or Muggsy may refer to:
Nickname Muggsy Bogues (born 1965), American basketball player-coach Muggsy Spanier (1901–1967), American jazz cornet player John McGraw (1873–1934), American baseball player and manager Owen Mulligan (born 1981), Irish Gaelic football player
Fictional characters Mugsy of Rocky and Mugsy, gangsters in Looney Tunes shorts Mugsy, a reporter in the 1937 film The Adventurous Blonde Mugsy, a smuggler in the 1950 film The Lady Craved Excitement Mugsy, in the 1951 film The Mating Season Mugsy, in the 1952 film Mother Riley Meets the Vampire Mugsy, a bank robber in the 1953 film Abbott and Costello Go to Mars Mugsy, a sorority house mother in the 1984 film Mugsy's Girls Mugsy, a dog in the 1991 animated film Rover Dangerfield Mugsy, a henchman of the Ventriloquist in Batman: The Animated Series Mugsy, a waiter in the 1995 play Dealer's Choice by Patrick Marber Mugsy, a bartender in the 1997 film Boogie Nights Muggsy Malloy, teenage protagonist of the 1976–77 television series Muggsy Mugsy O'Day, a gangster in the 1940 film Brother Orchid Mugsy Winthrop, a gangster in the 1939 film Daughter of the Tong
Other uses Muggsy (TV series), a 1976–77 television series Mugsy (video game), a 1980s computer game, also the title character Muggsy, a mascot for the Salem Red Sox Minor League Baseball team Mugsy, a humor strip in the American anthology comic book series Zip Comics