| 27691 | March 12 | Birth | 1938 – Lew DeWitt, American singer-songwriter and guitarist (The Statler Brothers) (d. 1990) |
| 27692 | March 12 | Birth | 1938 – David Drew, English ballet dancer (d. 2015) |
| 27693 | March 12 | Birth | 1938 – Johnny Rutherford, American race car driver |
| 27694 | March 12 | Birth | 1938 – Dimitri Terzakis, Greek-German composer and educator |
| 27695 | March 12 | Birth | 1939 – Lyndsie Holland, English actress and singer (d. 2014) |
| 27696 | March 12 | Birth | 1939 – Jude Milhon, American hacker and author (d. 2003) |
| 27697 | March 12 | Birth | 1940 – Al Jarreau, American singer |
| 27698 | March 12 | Birth | 1940 – M. A. Numminen, Finnish singer-songwriter and producer (Suomen Talvisota) |
| 27699 | March 12 | Birth | 1942 – Ratko Mladić, Serbian general |
| 27700 | March 12 | Birth | 1942 – Shabnam Shakeel, Pakistani poet and author (d. 2013) |
| 27701 | March 12 | Birth | 1942 – Jimmy Wynn, American baseball player and sportscaster |
| 27702 | March 12 | Birth | 1945 – Sammy Gravano, American mobster |
| 27703 | March 12 | Birth | 1945 – George Jackson, American singer-songwriter (d. 2013) |
| 27704 | March 12 | Birth | 1946 – Liza Minnelli, American actress, singer, and dancer |
| 27705 | March 12 | Birth | 1946 – Frank Welker, American voice actor and singer |
| 27706 | March 12 | Birth | 1946 – Serge Turgeon, Canadian actor and union leader (d. 2004) |
| 27707 | March 12 | Birth | 1947 – Peter Harry Carstensen, German educator and politician |
| 27708 | March 12 | Birth | 1947 – Mary Jean Harrold, American computer scientist and academic (d. 2013) |
| 27709 | March 12 | Birth | 1947 – Kalervo Palsa, Finnish painter (d. 1987) |
| 27710 | March 12 | Birth | 1947 – Mitt Romney, American businessman and politician, 70th Governor of Massachusetts |
| 27711 | March 12 | Birth | 1948 – Virginia Bottomley, Scottish politician, Secretary of State for Culture, Media and Sport |
| 27712 | March 12 | Birth | 1948 – Sandra Brown, American author |
| 27713 | March 12 | Birth | 1948 – Kent Conrad, American politician |
| 27714 | March 12 | Birth | 1948 – James Taylor, American singer-songwriter and guitarist |
| 27715 | March 12 | Birth | 1949 – Rob Cohen, American director, producer, and screenwriter |
| 27716 | March 12 | Birth | 1949 – Moctesuma Esparza, American actor and producer |
| 27717 | March 12 | Birth | 1949 – Charles Levin, American actor |
| 27718 | March 12 | Birth | 1949 – David Mellor, English journalist, lawyer, and politician, Chief Secretary to the Treasury |
| 27719 | March 12 | Birth | 1949 – Bill Payne, American singer-songwriter, pianist, and producer (Little Feat and Phil Lesh and Friends) |
| 27720 | March 12 | Birth | 1950 – Javier Clemente, Spanish footballer and manager |