Carlos "The Little Man" Marcello (February 6, 1910 – March 3, 1993) was a Sicilian-American mafioso who became the boss of the New Orleans crime family during the 1940s and held this position for the next 30 years.

Born as Calogero Minacori to Sicilian parents in Tunis, Tunisia, Marcello was brought to the United States in 1911 and his family settled in a decaying plantation house near Metairie, Louisiana. Carlos turned to petty crime in the French Quarter. He was later imprisoned for masterminding a crew of teenage gangsters who carried out armed robberies in the small towns surrounding New Orleans. At the time, local newspapers compared him to the character of Fagin from Charles Dickens' novel Oliver Twist. This conviction was later overturned. However, the following year he was convicted of assault and robbery and was sentenced to the Louisiana State Penitentiary for nine years. He was released after five years.

In 1938, Marcello was arrested and charged with the sale of more than 23 pounds of marijuana. Despite receiving another lengthy prison sentence and a $76,830 fine, Marcello served less than 10 months in prison. On his release from prison, Marcello became associated with Frank Costello, the leader of the Genovese crime family, in New York City. At the time, Costello was involved in transporting illegal slot machines from New York to New Orleans. Marcello provided the muscle and arranged for the machines to be placed in local businesses.

"The Man" is a slang phrase that may refer to the government or to some other authority in a position of power. In addition to this derogatory connotation, it may also serve as a term of respect and praise.

The phrase "the Man is keeping me down" is commonly used to describe oppression. The phrase "stick it to the Man" encourages resistance to authority, and essentially means "fight back" or "resist", either openly or via sabotage.

The earliest recorded use^{[citation needed]} of the term "the Man" in the American sense dates back to a letter written by a young Alexander Hamilton in September 1772, when he was 15. In a letter to his father James Hamilton, published in the Royal Dutch-American Gazette, he described the response of the Dutch governor of St. Croix to a hurricane that raked that island on August 31, 1772. "Our General has issued several very salutary and humane regulations and both in his publick and private measures, has shewn himself the Man." ^{[dubious – discuss]} In the Southern U.S. states, the phrase came to be applied to any man or any group in a position of authority, or to authority in the abstract. From about the 1950s the phrase was also an underworld code word for police, the warden of a prison or other law enforcement or penal authorities.