Ferdinando Imposimato (9 April 1936 – 2 January 2018) was an Italian magistrate and the honorary president of the Supreme Court of Italy.

During his career as a prosecutor, Imposimato was in charge of the investigation for the kidnapping of Aldo Moro, Mehmet Ali Ağca's attempted assassination of Pope John Paul II, the assassination of banker Michele Sindona, and several Mafia trials.

Two years later, his brother Franco was killed in revenge and, after endless menaces against his family from organized crime, he left his work as judge in 1986, working as United Nations consultant against the drugs market.

Imposimato believed that some top members of the CIA were aware of the presence of 9/11 terrorists in the United States but did not alert "the only agency competent to counter terrorism on US soil", the FBI.

[4] He suggested that the only possibility for achieving justice is to submit the case to the prosecutor of the International Criminal Court.