| Ralph Macchio | 11/4/1962 | Huntington, NY | Actor |
| Ken Macha | 9/29/1950 | Monroeville, PA | Baseball |
| James Madio | 11/22/1975 | Bronx, NY | Actor |
| Johnny Maestro (Mastrangelo) | 5/7/1939 | Brooklyn, NY | Singer |
| Roma Maffia | 5/31/1958 | New York, NY | Actress |
| Salvatore (Sal) Maglie | 4/26/1917 | Niagra Falls, NY | Baseball |
| Anna Magnani | 3/7/1908 | Alexandria, Egypt | Actress |
| Tina (Albertina) Majorino | 2/7/1985 | Westlake, CA | Actress |
| Paul Malignaggi | 12/23/1980 | Brooklyn, NY | Boxing |
| Frank Malzone | 2/28/1930 | Bronx, NY | Baseball |
| Michael Manasseri | 2/28/1974 | Poughkeepsie, NY | Actor |
| Henry Mancini (Enrico Nicola Mancini) | 4/16/1924 | Cleveland, OH | Composer |
| Ray Mancini | 3/4/1961 | Youngstwon, OH | Boxing |
| Nick Mancuso | 5/29/1948 | Calabria, Italy | Actor |
| Sammy (Mandella) Mandell | 2/5/1904 | Rockford, IL | Boxing |
| Larry Manetti | 7/23/1938 | Chicago, IL | Actor |
| Peter Manfredo Jr. | 11/26/1980 | Pawtucket, RI | Boxing |
| Joe Manganiello | 12/28/1976 | Pittsburgh, PA | Actor |
| Silvana Mangano | 4/21/1930 | Rome, Italy | Actress |
| Eric Mangini | 1/19/1971 | Hartford, CN | Football |
| Chuck Mangione | 11/29/1940 | Rochester, NY | Musician |
| Joe Mantegna | 11/13/1947 | Chicago, IL | Actor |
| Sylvio Mantha | 4/14/1902 | Montreal, Canada | Hockey |
| Annunzio Mantovani | 11/15/1905 | Venice, Italy | Orchestra Conductor |
| Don Manzullo | 3/24/1944 | Rockford, IL | Congressman IL |
| Salvatore Maranzano | ?/?/1868 | Sicily, Italy | Mob |
| Carlos Marcello (Calogero Minacore) | 2/6/1910 | Tunis, Tunisia | Mob |
| Gino Marchetti | 1/2/1927 | Antioch, CA | Football |
| Rocky Marciano (Rocco Marchegiano) | 9/1/1923 | Brockton, MA | Boxing |
| Guglielmo Marconi | 4/25/1874 | Bologna, Italy | Science, Invention |
| Robert Marella (Gorilla Monsoon) | 6/4/1937 | Burlington, NJ | Wrestling |
| Santino Marella (Anthony Carelli) | 3/6/1974 | New York, NY | Wrestling |
| Rose Marie (Mazzetta) | 8/15/1923 | New York, NY | Actress |
| Ed Marinaro | 3/31/1951 | New York, NY | Football |
| Rod Marinelli | 7/13/1949 | Rosemead, CA | Football |
| Dan Marino | 9/15/1961 | Pittsburgh, PA | Football |
| Steve Mariucci | 11/4/1955 | Iron Mtn., MI | Football |
| Garry Marshall (Masciarelli) | 11/13/1934 | Bronx, NY | Actor |
| Penny Marshall (Carole Masciarelli ) | 10/15/1942 | Bronx, NY | Actress |
| Billy Martin (Alfred Pesano) | 5/16/1928 | Berkely, CA | Baseball |
| Dean Martin (Dino Crocetti) | 6/7/1917 | Steubenville, OH | Singer |
| Gary W. Martini | 9/21/1948 | Lexington, VA | Military |
| Nino Martini | 8/7/1902 | Verona, Italy | Opera |
| Al Martino (Alfred Cini) | 10/7/1927 | Philadelphia, PA | Singer |
| Pat Martino | 8/25/1944 | Philadelphia, PA | Musician |
| Ashley Massaro | 5/26/1979 | Babylon, NY | Wrestling |
| Joseph (The Boss) Masseria | ?/?/1887 | Sicily, Italy | Mob |
| Marcelo Mastroiani | 9/28/1924 | Fontana Liri, Italy | Actor |
| Elizabeth Mastrantonio | 11/17/1958 | Oak Park, IL | Actress |
| Gina Mastrogiacomo | 11/5/1961 | New York, NY | Actress |
| Victor Mature (Maturi) | 1/29/1913 | Louisville, KY | Actor |
| Tami Mauriello | 9/18/1923 | NY, NY | Boxing |
| Joey Maxim (Giuseppe Berradinelli) | 3/28/1922 | Cleveland, OH | Boxing |
| Debi Mazar | 8/15/1964 | Queens, NY | Actress |
| Valeria Mazza | 2/17/1972 | Santa Fe, Argentina | Model |
| Kelly Mazzante | 2/2/1982 | Montoursville, PA | Basketball |
| Filippo Mazzei | 12/25/1730 | Tuscano, Italy | Patriot |
| Joseph Mazzello | 9/23/1983 | Rhinebeck, NY | Actor |
| Lee Mazzilli | 3/25/1955 | Brooklyn, NY | Baseball |
| Leo Mazzone | 10/16/1948 | Keyser, WV | Baseball |
| Patty McCormack (Russo) | 8/21/1945 | Brooklyn, NY | Actress |
| Dylan (Mark) McDermott | 10/26/1961 | Waterbury, CT | Actor |
| Tim Mcgraw | 5/1/1967 | Delhi, LA | Singer |
| Chris Meloni | 4/2/1961 | Washington D.C | Actor |
| Frank Menechino | 1/7/1971 | Staten Island, NY | Baseball |
| Tony Meola | 2/21/1969 | Belleville, NJ | Soccer |
| Lou Merloni | 4/6/1971 | Framingham, MA | Baseball |
| Antonio Meucci | 4/13/1808 | Florence, Italy | Inventor |
| Giovanna Mezzogiorno | 11/9/1974 | Rome, Italy | Actress |
| John Mica | 1/27/1943 | Binghamton, NY | Congressman FL |
| Justine Miceli | 4/30/1959 | Queens, NY | Actress |
| Alyssa Milano | 12/19/1972 | Brooklyn, NY | Actress |
| Sofia Milos | 9/27/?? | Zurich, Switzerland | Actress |
| Liza Minelli | 3/12/1946 | Los Angeles, CA | Singer |
| Sal Mineo | 1/10/1939 | New York, NY | Actor |
| Vanessa Minnillo | 11/9/1980 | Clark AB, Philippines | Actress |
| Doug Mirabelli | 10/18/1970 | Kingman, AZ | Baseball |
| Mike Modano | 6/7/1970 | Livonia, MI | Hockey |
| Al Molinaro | 6/24/1919 | Kenosha, WI | Actor |
| Jim Molinaro | 4/27/1981 | Hatfield, PA | Football |
| Sergio Momesso | 9/4/1965 | Montreal, Canada | Hockey |
| Kara Monaco | 2/26/1983 | Lakeland, Fla | Model |
| Kelly (Marie) Monaco | 5/23/1976 | Philadelphia, PA | Model, Actress |
| Joe Montana | 6/11/1956 | New Eagle, PA | Football |
| Lenny Montana (Passofaro) | 3/13/1926 | Brooklyn, NY | Wrestling, Actor |
| Lou (Scaglione) Monte | 4/2/1917 | New York, NY | Singer, Comedian |
| John Montefusco | 5/25/1950 | Long Branch, NJ | Baseball |
| Maria Montessori | 8/31/1870 | Chiaravalle, Italy | Education, Medicine |
| Mickey Morandini | 4/22/1966 | Kittanning, PA | Baseball |
| Lisa (Ivory) Moretti | 11/26/1961 | Inglewood, CA | Wrestling |
| Angelo (King Kong) Mosca | 3/13/1938 | Waltham, MA | Wrestling |
| Willie Mosconi | 6/27/1913 | Philadelphia, PA | Pocket Billiards |
| Tommy Mottola | 7/4/1949 | Bronx, NY | Music Executive |
| Colonel Henry Mucci | ?/?/1909 | Bridgeport, CN | Military |
| Catarina Murino | 9/15/1977 | Cagliari, Italy | Actress |
| Brittany Murphy (Sharon Bertolotti) | 11/10/1977 | Atlanta, GA | Actress |
| Tony Musante | 6/30/1936 | Bridgeport, CN | Actor |
| Mike Mussina | 12/8/1968 | Williamsport, PA | Baseball |
| George Musso | 4/8/1910 | Collinsville, IL | Football |
| Johnny Musso | 3/6/1950 | Birmingham, AL | Football |
| Ornella Muti | 3/9/1955 | Rome, Italy | Actress |