Silvio Manfred Dante is a fictional character on the HBO TV series The Sopranos, portrayed by Steven Van Zandt. He is the consigliere and right-hand man to Tony Soprano in the DiMeo crime family. John Magaro portrays a young Silvio Dante in the 2021 prequel film, The Many Saints of Newark.

According to The Sopranos, A Family History, Silvio was born in June 1957 in West Orange, New Jersey. His father was Joseph "Beppo" Dante, of Calabrian origin, a member of Knights of Columbus and mob soldier who was gunned down in 1959. Silvio was a childhood friend of Tony Soprano. His early criminal activity often involved Tony and Jackie Aprile Sr. His original career plan was to be a professional singer, but this dream never materialized.

Despite this, Silvio has maintained a connection to show business through ownership of numerous clubs in North Jersey over the years, and in backing aspiring young starlets who come up through his clubs. Silvio's support was instrumental in ensuring Tony took over as capo following the death of his father. Through his association with the Soprano crew, Silvio formed friendships with Salvatore "Big Pussy" Bonpensiero and Paulie "Walnuts" Gualtieri.

Silvio is one of Tony's more level-headed associates. Where many of Tony's men immediately become hot-headed and readily resort to violence, Silvio generally helps to mediate situations and gets along with everyone. He accompanies Tony to most of his "sit-downs"—formal meetings within the organization to resolve disputes. Because of this, Tony relies on Silvio to be a clear-headed thinker and someone he can trust.

It was Silvio who reported to Tony that Uncle Junior planned to murder Pussy Malanga in Artie Bucco's restaurant and who was later entrusted with starting the fire which would ensure the original Vesuvio's burnt down, therefore not ruining its reputation. In the short and bloody war of 1999 with the Junior Soprano crew, Silvio helped Tony to plan hits on Chucky Signore and Mikey Palmice and remained supportive when Tony revealed that he had been seeing a therapist.

Silvio is most often the one to quote Mafia rules and norms when a tough decision is to be made, even if he ends up disagreeing with Tony. Silvio's move to consigliere once Tony becomes acting boss seems completely natural. Silvio remains Tony's most reliable adviser and enforcer, only displaying his aggression in a small number of incidents. One such is when Fat Dom Gamiello makes a remark about the late Vito Spatafore, which implied that Carlo Gervasi was gay. An enraged Silvio attacked Fat Dom by hitting him in the back of the head with a handheld vacuum and then holding his arms behind his back, which allowed Carlo to stab Dom repeatedly in the abdomen with a large kitchen knife. In poker, Silvio often becomes foul-mouthed and paranoid. Silvio likes to do an impression of Al Pacino, specifically a scene from The Godfather Part III, which his friends find amusing.

Silvio's criminal interests include loan sharking and bookmaking but his day-to-day role is that of managing the Bada Bing, the most recent in a string of strip clubs that he has operated. "The Bing", as it is often referred to, is one of the crime family's major meeting spots, and doubles as a brothel. Silvio loves and cares about, and is a strong father to his teenage daughter Heather, whom he calls The Principessa. Silvio says that Heather disapproves of his profession, calling it "degrading to women".

When his daughter's and Meadow Soprano's paedophile soccer coach, Don Hauser, was found to be grooming and raping one of his young players, Silvio looked for vigilantism vengeance but followed Tony's decision to let the authorities arrest him. Apart from periodic instances of adultery—Christopher says during his intervention in "The Strong, Silent Type" that Silvio was "fucking every slut you got working in the place"—it can be said that he loves his wife, Gabriella Dante (played by Steven Van Zandt's real-life wife Maureen Van Zandt), very much.