Sebastiano DiGaetano (Italian pronunciation: [sebaˈstjaːno diɡaeˈtaːno]; c. 1862 – disappeared March 1912) was an Italian-born New York City mafia boss of what would later become known as the Bonanno crime family. He briefly attained the title capo dei capi (English: "Boss of bosses") of the Sicilian-American mafia, after Giuseppe Morello had been convicted of counterfeiting money in 1910. DiGaetano stepped down as boss of his crime family in 1912, and disappeared shortly thereafter.