Samuel Weiss (born c. 1900 - died October 3, 1951) was a New York City mobster primarily associated with labor racketeering. Weiss, also known as "Ruby", was a key figure in the garment district, where he controlled trucking and garment manufacturing unions. He was closely aligned with, and frequently acted as an enforcer for, labor racketeer Louis "Lepke" Buchalter.
Weiss was implicated in numerous acts of violence and extortion, common tactics employed to maintain control over the unions and extract payments from businesses. He was known for his ruthless methods and willingness to use force to achieve his goals.
In 1944, Weiss was convicted on federal charges relating to extortion and conspiracy in the trucking industry and sentenced to a lengthy prison term.
Samuel Weiss was murdered on October 3, 1951, in New York City. The identity of his killer remains officially unsolved, although it is widely believed within law enforcement circles that the murder was related to his past criminal activities and power struggles within organized crime. His death highlighted the violent nature of the underworld and the risks associated with involvement in labor racketeering.