American mobsters and organized crime figures by region and by American Mafia organization, both past and present.The American Mafia, commonly referred to in North America as the Italian-American Mafia, the Mafia, or the Mob, is a highly organized Italian-American criminal society and organized crime group

Giuseppe "the Clutch Hand" Morello – boss (1890s–1909)

Morello in 1902
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Nicholas "Nick" Morello – boss (1909–1916) killed in 1916
Nicholas Morello 1866
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Vincenzo "Vincent" Terranova – boss (1916–1920)

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Giuseppe "Joe the boss" Masseria – boss (1920–1931)

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Charlie "Lucky" Luciano – boss (1931–1946)
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Frank "The Prime Minister" Costello – acting boss (1936–1945), boss (1946–1957)
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"Don" Vito Genovese – underboss (1931–1936), boss (1957–1969)
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Anthony "Tony Bender" Strollo – acting boss (1959–1962)
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Thomas "Tommy Ryan" Eboli – acting boss (1962–1965)
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Frank Tieri – front boss (circa 1972–1981)
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Philip Lombardo – boss (1969–1981)
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Anthony "Fat Tony" Salerno – front boss (1981–1987)
Vincent "Chin" Gigante – underboss (1981–1987), boss (1981–2005)
Liborio Bellomo – acting boss (1990–1992), street boss (1992–1996), boss (2010-present)
Dominick "Quiet Dom" Cirillo – acting boss (1997–1998)
Matthew "Matty The Horse" Ianniello – acting boss (1997–2005)
Mario Gigante – street boss (2006–2007)
Daniel Leo (mobster) – acting boss (2005–2008)