| 30241 | March 18 | Birth | 1925 – James Pickles, English journalist, lawyer, and judge (d. 2010) |
| 30242 | March 18 | Birth | 1926 – Peter Graves, American actor and director (d. 2010) |
| 30243 | March 18 | Birth | 1926 – Dick Littlefield, American baseball player (d. 1997) |
| 30244 | March 18 | Birth | 1926 – Akkitham Achuthan Namboothiri, Indian poet and social worker |
| 30245 | March 18 | Birth | 1927 – John Kander, American pianist and composer |
| 30246 | March 18 | Birth | 1927 – George Plimpton, American journalist and actor (d. 2003) |
| 30247 | March 18 | Birth | 1928 – Julia Mullock, American-South Korean wife of Yi Gu |
| 30248 | March 18 | Birth | 1928 – Miguel Poblet, Spanish cyclist (d. 2013) |
| 30249 | March 18 | Birth | 1928 – Fidel V. Ramos, Filipino general and politician, 12th President of the Philippines |
| 30250 | March 18 | Birth | 1929 – Jacki Clérico, French businessman (d. 2013) |
| 30251 | March 18 | Birth | 1929 – John Macurdy, American opera singer |
| 30252 | March 18 | Birth | 1929 – Samuel Pisar, Polish-American lawyer and author (d. 2015) |
| 30253 | March 18 | Birth | 1929 – Jack B. Sowards, American screenwriter and producer (d. 2007) |
| 30254 | March 18 | Birth | 1930 – Pat Halcox, English trumpet player (d. 2013) |
| 30255 | March 18 | Birth | 1931 – Howard Coble, American captain, lawyer, and politician (d. 2015) |
| 30256 | March 18 | Birth | 1931 – John Fraser, Scottish actor |
| 30257 | March 18 | Birth | 1931 – John Mollo, English costume designer and author |
| 30258 | March 18 | Birth | 1932 – John Updike, American author, poet, and critic (d. 2009) |
| 30259 | March 18 | Birth | 1932 – Frank Nagai, Japanese singer (d. 2008) |
| 30260 | March 18 | Birth | 1933 – Unita Blackwell, American activist and politician |
| 30261 | March 18 | Birth | 1934 – Roy Chapman, English footballer and manager (d. 1983) |
| 30262 | March 18 | Birth | 1934 – Pietro Rizzuto, Italian-Canadian politician (d. 1997) |
| 30263 | March 18 | Birth | 1935 – Ole Barndorff-Nielsen, Danish mathematician and statistician |
| 30264 | March 18 | Birth | 1935 – Antonios Naguib, Egyptian patriarch |
| 30265 | March 18 | Birth | 1936 – F. W. de Klerk, South African lawyer and politician, 2nd State President of South Africa, Nobel Prize laureate |
| 30266 | March 18 | Birth | 1937 – Rudi Altig, German cyclist and screenwriter |
| 30267 | March 18 | Birth | 1937 – Mark Donohue, American race car driver (d. 1975) |
| 30268 | March 18 | Birth | 1938 – Carl Gottlieb, American actor and screenwriter |
| 30269 | March 18 | Birth | 1938 – Shashi Kapoor, Indian actor and producer |
| 30270 | March 18 | Birth | 1938 – Kenny Lynch, English singer-songwriter and actor |