Mario R. Gigante (born November 4, 1923 in Greenwich Village, Manhattan) is a New York City mobster who served as caporegime for the Genovese crime family. He is the older brother of late family boss Vincent "The Chin" Gigante.
Gigante was born in Lower East Side, Manhattan to Salvatore Esposito Vulgo Gigante (April 26, 1900- April 1979), a jewel engraver, and Yolonda Santasilia-Gigante (1902-May 10, 1997), a seamstress and maternal niece of Dolores Santasilia. His parents and aunt were first generation immigrants from Naples, Italy and never learned the English language. Vincent and his extended family relatives settled in New York City and Westchester County including Connecticut and Massachusetts. He had four brothers, Vincent, Pasquale A. Gigante (October 18, 1921 - January 7, 1983) and Ralph Gigante (March 14, 1930 - 1994), who followed his brother Vincent into a life of organized crime. His last brother Louis Gigante became an ordained Roman Catholic priest at St. Athanasius Church in the South Bronx and city councilman.
Mario began his criminal life as a "made man," or full family member, in caporegime Vito Genovese's Greenwich Village crew. At that time, his brother Vincent was Genovese's chauffeur. During the power struggle between Genovese and then boss Frank Costello, the Gigante brothers were reportedly involved in several significant hits for Genovese. On August 12, 1957, the day after the attempted assassination of Costello, New York Police Department (NYPD) detectives were watching Vincent's house in Greenwich Village. When Mario drove up, detectives took him out of the car and one tried to search him. Mario punched the detective and was arrested for assault. In court, the charge was reduced and Mario paid a $25 fine.