This list includes American and Australian Mafiosi by area of operation/sphere of influence. Some names may be listed in more than one city.

• Melbourne, Australia
  Alphonse Gangitano 
  Jason Moran 
  Carl Williams 
  Graham "The Munster" Kinniburgh 
  Andrew "Benji" Veniman 
  
  
• Buffalo, USA
  Albert Agueci 
  Vito Agueci 
  Salvatore Bonito 
  Paul Briandi 
  Salvatore Brocato 
  John Cammillierri 
  Steven Cannarozzo 
  Roy Carlisi 
  Joseph J. DiCarlo, "Jerry the Wolf" "Joe the Gyp" 
  Joseph Fino 
  Samuel Lagatutta 
  Antonio Magaddino 
  Gaspare Magaddino 
  Peter Magaddino 
  Stefano Magaddino 
  Salvatore Miano 
  Pascal Natarelli 
  Anthony Perna 
  Pascal Politano 
  Federico Randaccio 
  Salvatore Rizzo 
  Samuel Russotti 
  Daniel Sansanese 
  Vincent Scro 
  Michael Tuscarella 
  Joseph E. Todaro, "Lead Pipe Joe" 
  John Tranalone, "Peanuts" 
  Frank Valenti 
  
  
• Cleveland
  Moe Dalitz 
  James Licavoli 
  John Nardi 
  Michael Vara 
  
  
• Chicago Outfit
  Tony Accardo, "Joe Batters", "Big Tuna" 
  Joe Aiello 
  Joseph Aiuppa "Doves" 
  Felix Alderisio, "Milwaukee Phil" 
  Gus Alex "Gussie" 
  Louis Alterie, "Two Gun" 
  Harry Aleman 
  Samuzzo Amatuna, "Samoots" 
  Sam Battaglia, "Teets" 
  John Michael Caifano 
  Al Capone, "Scarface" 
  Frank Capone 
  Ralph Capone 
  Sam Cardinella 
  Jackie Cerone, "Jackie the Lackey" 
  Eco James Coli 
  James Colosimo, "Big Jim" 
  William Daddano Sr., "Willie Potatoes" 
  Vincent Drucci, "Schemer" 
  Sam DeStefano, "Mad Sam" 
  Mario Anthony DeStefano 
  Michael DeStefano 
  Chuckie English 
  Ken Eto, "Joe the Jap" 
  Rocco Fischetti 
  Charlie Fischetti 
  Sam Giancana, "Momo", "Mooney" 
  Jake Guzik, "Greasy Thumb" 
  Nick LoCoco, "The Stick" 
  Joey Lombardo Sr,, "The Clown" 
  James Marcello "Jimmy the Man" 
  Jack McGurn 
  Bugs Moran 
  Frank Nitti "The Enforcer" 
  Dean O'Banion 
  Ross Prio 
  Paul Ricca, "The Waiter" 
  John Roselli 
  Anthony Spilotro, "Tony the Ant" 
  John Spilotro 
  Michael Spilotro 
  Victor Spilotro 
  Frank Schwehis "The German" 
  Johnny Torrio "The Brain" "The Fox" "Pappa Johnny" 
  Earl Weiss, "Hymie" 
  Frankie Yale 
  
  
• Detroit
  Joseph Zerilli 
  
  
• Kansas City
  Charles Binaggio 
  Nicholas Civella 
  Nicolo Impostato 
  James De Simone 
  Joseph De Luca 
  Carl DeLuna "Toughy" 
  Tom Pendergast 
  Charles "Mad Dog" Gargotta 
  Carl "Cork" Civella 
  Anthony "Tony" Gizzo 
  John Lazia 
  Gaetano Lococo 
  Joseph "Scarface" DiGiovanni 
  Pete DiGiovanni 
  James Balestrere 
  Anthony "Tony Ripe" Civella 
  Frank DeMayo 
  Charles V. "Charley The Wop" Carollo 
  Willie "Rats" Cammisano Sr. 
  Pete Simone 
  Joe Lusco 
  Anthony "Tiger" Carderella 
  Felix "Little Phil" Ferina 
  
  
• Las Vegas
  John Roselli (Sent Representing the Chicago Family) 
  Bugsy Siegel 
  Anthony Spilotro, "Tony the Ant" (Sent Representing the Chicago Family) 
  
  
• Los Angeles
  Dominic Brooklier 
  Mickey Cohen 
  Frank Desimone 
  Jack Dragna 
  Louis Tom Dragna 
  Aladena (Jimmy the Weasel) Fratianno 
  Nick Licata 
  Peter Milano 
  Salvatore Sonny Gambino 
  
  
• Miami
  Jose Miguel Battle 
  Santo Trafficante, Sr. 
  
  
• Milwaukee
  Felix Alderisio, "Milwaukee Phil" 
  Frank Balistrieri 
  
  
• New Jersey
  Ruggiero Boiardo, "Richie the Boot" 
  Angelo DeCarlo 
  Sam DeCavalcante, "The Plumber" 
  Waxey Gordon 
  Willie Moretti 
  Abner Zwillman 
  
  
• New Orleans
  Sam Carolla 
  Carlos Marcello 
  Charles Matranga 
  
  
• New York City
  Joe Adonis 
  Vincent Alo, "Jimmy Blue Eyes" 
  Louis Amberg 
  Albert Anastasia 
  Anthony Anastasio, "Tough Tony" 
  Leroy Barnes 
  Vincent Basciano, "Vinny Gorgeous" 
  Tony Bender 
  Thomas Bilotti 
  Joseph Bonanno, "Joe Bananas" 
  Salvatore Bonanno 
  Louis Campagna, "Little New York" 
  Paul Castellano, "Big Paul", called "PC" by his family. 
  Dominick Cirillo, "Quiet Dom" 
  Vincent Coll, "Mad Dog" 
  Joseph Colombo 
  Jimmy Coonan 
  Michael Coppola, "Trigger Mike" 
  Antonio Corallo, "Tony Ducks" 
  Nicholas Corozzo 
  Frank Costello 
  Aniello Dellacroce, "Mr. Neil" 
  Roy Demeo 
  Thomas DeSimone 
  Johnny Dio 
  Thomas Eboli, "Tommy Ryan" 
  Steven Franse 
  Carmine Galante 
  Joey Gallo, "Crazy Joe" 
  Carlo Gambino 
  Vito Genovese 
  Vincent Gigante, "The Chin" 
  Gene Gotti 
  John Gotti Jr., "The Dapper Don" 
  John A. Gotti, "Junior" 
  Peter Gotti 
  Richard G. Gotti 
  Richard V. Gotti 
  Vincent Gotti 
  Sammy Gravano, "The Bull" 
  Henry Hill 
  Gennaro Langella, "Jerry Lang" 
  Thomas Lucchese, "Three Finger Brown" 
  Joe Massino, "Big Joey" 
  Joe Masseria, "Joe the Boss" 
  Nicholas Morello 
  Peter Morello 
  Carmine Persico 
  "Little" Augie Pisano 
  Joe Profaci 
  Phillip Rastelli 
  Lawrence Ricci 
  Arnold Rothstein 
  Anthony Salerno 
  Frank Scalise, "Don Cheech" 
  Dutch Schultz 
  Harry Strauss, "Pittsburgh Phil" 
  Frank Tieri 
  Joe Valachi 
  Paul Vario 
  Frankie Yale 
  Salvatore Gambino Sonny boy 
  
  
• Philadelphia
  Fifi Buccieri 
  Joseph Merlino, "Skinny Joey" 
  Harry Riccobene 
  Nicodemo Scarfo, "Little Nicky" 
  Philip Testa, "Chicken Man" 
  Salvatore Testa 
  
  
• Pittsburgh
  John Larocca 
  
  
• Pennsylvania
  Russel Bufalino 
  
  
• Providence, Rhode Island
  Raymond Patriarca Sr. 
  Raymond Patriarca Jr., "Junior" 
  
  
• St. Louis
  Thomas Buffa 
  Dinty Colbeck 
  Jellroll Egan 
  
  
• San Diego
  Frank Bompensiero, "Bomp" 
  
  
• San Juan, Puerto Rico
  Tony Tursi 
  
  
• Tampa
  Ignacio Antinori 
  Santo Trafficante Sr. 
  Santo Trafficante Jr. 
  
  
• National Crime Syndicate
  Louis Buchalter, "Lepke" 
  Meyer Lansky 
  Charles Luciano, "Lucky" 
  Salvatore Maranzano, faux "Boss of Bosses" 
  Benjamin Siegel, "Bugsy"