The via D'Amelio bombing was a terrorist attack by the Sicilian Mafia, which took place in Palermo, Sicily, Italy, on 19 July 1992. It killed Paolo Borsellino, the anti-mafia Italian magistrate, and five members of his police escort: Agostino Catalano, Emanuela Loi, Vincenzo Li Muli, Walter Eddie Cosina, and Claudio Traina.

The Sicilian Mafia or Cosa Nostra, also referred to as simply Mafia, is a criminal society originating on the island of Sicily and dates back to the mid-19th century. It is an association of gangs which sell their protection and arbitration services under a common brand. The Mafia's core activities are protection racketeering, the arbitration of disputes between criminals, and the organizing and oversight of illegal agreements and transactions.