John "Jackie" D'Amico (July 11, 1936 – December 27, 2023) was an American mobster and caporegime in New York City who served as street boss of the Gambino crime family from 2005 to 2011.

At the Gotti trial, mobster Michael “Mikey Scars” DiLeonardo said, "[D'Amico] had his nose fixed, a (rhinoplasty).

John Gotti loved him because... Jackie was a fellow gambler who placed all his bets for him D'Amico was an old friend of Irving "Hal" Hershkowitz, the founder and president of the non-alcoholic beverage corporation Big Geyser, Incorporated,[1] He worked in their Maspeth, Queens warehouse.

[1] At the same warehouse where D'Amico had an office block, he was a co-worker of Lucchese crime family capo Matthew Madonna who is also listed on the company payroll.

[1] Herskowitz stated to reporter Tom Robbins that he had known D'Amico for thirty years and considered him a good, long-time friend.

In 1976, D'Amico began operating loansharking, illegal gambling, extortion and labor racketeering activities in Brooklyn, Queens and the Bronx.

With income from loansharking, extortion, and illegal gambling operations, D'Amico gained much respect within the family On December 16, 1985, Castellano and his underboss Thomas Bilotti were gunned down outside the Sparks Steak House in Manhattan.

On February 7, 2008, D'Amico was arrested along with more than 60 affiliates of the Gambino family after Operation Old Bridge picked up an informant named Joseph Vollaro.

In May, 2008, D'Amico pleaded guilty to extorting a cement company out of $100,000 and was sentenced on August 18, 2008, to two years in prison at the Metropolitan Correctional Center, New York City.