The wife of John "Johnny Sack" Sacramoni and the mother of Catherine and Allegra Marie Sacramoni. Once a slender professional dancer, Ginny has struggled with her weight since having children. John's love for her seems genuine and blind to her size. In fact, he likes her as she is, "Rubenesque" as he described her, although she is much heavier than the term "Rubenesque" implies. Ginny's ample figure is the subject of numerous jokes by members of the Soprano crime family, and this leads to a serious dispute between her husband and Ralph Cifaretto. Johnny is willing to kill to defend her honor and viciously attacks a member of Ralph's crew, who Johnny mistakenly believes was telling jokes at Ginny's expense. John sometimes becomes angry with Ginny, particularly when she lies to him (as when he once found her sneak-eating hidden candy) but he is usually quick to forgive her. John's discovery of Ginny's secretive binge-eating made him realize he was too hard on the guys who made the joke about his wife.
Ginny was proud to attend her daughter Allegra's wedding and ecstatic when Johnny was allowed to attend, despite being in prison awaiting trial. Her day ended on a low note when US Marshals blocked her daughter's departure and dragged her sobbing husband off in handcuffs. This proved too much for Ginny, who fainted.
Ginny turned 50 in the episode, "Moe n' Joe", and her friends Carmela Soprano, Angie Bonpensiero, Gabriella Dante, Janice Soprano, and Rosalie Aprile attended a birthday celebration at her home. She discussed some difficulties with Allegra, who felt Ginny was not happy for her marriage. Gabriella pointed out that Allegra may just have been shocked to be less happy than she had expected to be as a newlywed.
Ginny was in court when Johnny admitted his involvement with the Mafia and received a 15 year sentence for racketeering. Ginny was forced to move when John arranged the sale of their home to Janice Soprano as part of an agreement with Tony to try to secure capital, for his family, following the asset seizures that came with his conviction.
Ginny visited her husband John in prison when he was diagnosed with cancer, and was at his side with their two daughters when he died. Tony mentioned, in passing (in the episode "Remember When") that Ginny had taken a job running an office, selling insurance.
Denise Borino, who portrayed Sacramoni, received the part in a 2000 open casting call. She died of cancer on October 27, 2010.