| 81481 | July 18 | Birth | 1917 – Henri Salvador, French singer and guitarist (d. 2008) |
| 81482 | July 18 | Birth | 1918 – Nelson Mandela, South African lawyer and politician, 1st President of South Africa, Nobel Prize laureate (d. 2013) |
| 81483 | July 18 | Birth | 1920 – Eric Brandon, English race car driver and businessman (d. 1982) |
| 81484 | July 18 | Birth | 1921 – Peter Austin, English brewer, founded Ringwood Brewery (d. 2014) |
| 81485 | July 18 | Birth | 1921 – Aaron T. Beck, American psychiatrist and academic |
| 81486 | July 18 | Birth | 1921 – John Glenn, American colonel, astronaut, and politician |
| 81487 | July 18 | Birth | 1921 – Richard Leacock, English-French director and producer (d. 2011) |
| 81488 | July 18 | Birth | 1922 – Thomas Kuhn, American physicist, historian, and philosopher (d. 1996) |
| 81489 | July 18 | Birth | 1923 – Jerome H. Lemelson, American engineer and businessman (d. 1997) |
| 81490 | July 18 | Birth | 1924 – Inge Sørensen, Danish swimmer (d. 2011) |
| 81491 | July 18 | Birth | 1925 – Shirley Strickland, Australian runner and hurdler (d. 2004) |
| 81492 | July 18 | Birth | 1925 – Friedrich Zimmermann, German lawyer and politician, German Federal Minister of the Interior (d. 2012) |
| 81493 | July 18 | Birth | 1926 – Margaret Laurence, Canadian author and academic (d. 1987) |
| 81494 | July 18 | Birth | 1927 – Kurt Masur, Polish-German conductor and educator |
| 81495 | July 18 | Birth | 1928 – Andrea Gallo, Italian priest and author (d. 2013) |
| 81496 | July 18 | Birth | 1928 – Franca Rame, Italian actress and playwright (d. 2013) |
| 81497 | July 18 | Birth | 1929 – Dick Button, American figure skater and actor |
| 81498 | July 18 | Birth | 1929 – Screamin' Jay Hawkins, American singer-songwriter, producer, and actor (d. 2000) |
| 81499 | July 18 | Birth | 1930 – Burt Kwouk, English actor |
| 81500 | July 18 | Birth | 1932 – Robert Ellis Miller, American director and screenwriter |
| 81501 | July 18 | Birth | 1932 – Yevgeny Yevtushenko, Russian poet and playwright |
| 81502 | July 18 | Birth | 1933 – Syd Mead, American set designer |
| 81503 | July 18 | Birth | 1933 – Jean Yanne, French actor, director, producer, and screenwriter (d. 2003) |
| 81504 | July 18 | Birth | 1934 – Edward Bond, English director, playwright, and screenwriter |
| 81505 | July 18 | Birth | 1934 – Darlene Conley, American actress (d. 2007) |
| 81506 | July 18 | Birth | 1934 – Roger Reynolds, American composer and educator |
| 81507 | July 18 | Birth | 1935 – Tenley Albright, American figure skater and physician |
| 81508 | July 18 | Birth | 1935 – Jayendra Saraswathi, Indian guru, 69th Shankaracharya |
| 81509 | July 18 | Birth | 1937 – Roald Hoffmann, Polish chemist and academic, Nobel Prize laureate |
| 81510 | July 18 | Birth | 1937 – Hunter S. Thompson, American journalist and author (d. 2005) |