| 43381 | April 15 | Birth | 1920 – Godfrey Stafford, English-South African physicist and academic (d. 2013) |
| 43382 | April 15 | Birth | 1920 – Thomas Szasz, Hungarian-American psychiatrist and academic (d. 2012) |
| 43383 | April 15 | Birth | 1920 – Richard von Weizsäcker, German soldier and politician, 6th President of Germany (d. 2015) |
| 43384 | April 15 | Birth | 1921 – Georgy Beregovoy, Ukrainian-Russian general, pilot, and astronaut (d. 1995) |
| 43385 | April 15 | Birth | 1921 – Angelo DiGeorge, American physician and endocrinologist (d. 2009) |
| 43386 | April 15 | Birth | 1922 – Michael Ansara, Syrian-American actor (d. 2013) |
| 43387 | April 15 | Birth | 1922 – Joyce Jacobs, English-Australian actress (d. 2013) |
| 43388 | April 15 | Birth | 1922 – Hasrat Jaipuri, Indian poet and songwriter (d. 1999) |
| 43389 | April 15 | Birth | 1922 – Harold Washington, American lawyer and politician, 51st Mayor of Chicago (d. 1987) |
| 43390 | April 15 | Birth | 1922 – Graham Whitehead, English racing driver (d. 1981) |
| 43391 | April 15 | Birth | 1923 – Artur Alliksaar, Estonian poet and author (d. 1966) |
| 43392 | April 15 | Birth | 1923 – Robert DePugh, American activist, founded the Minutemen Organization (d. 2009) |
| 43393 | April 15 | Birth | 1923 – Douglas Wass, English civil servant |
| 43394 | April 15 | Birth | 1924 – M. Canagaratnam, Sri Lankan politician (d. 1980) |
| 43395 | April 15 | Birth | 1924 – Neville Marriner, English violinist and conductor |
| 43396 | April 15 | Birth | 1925 – George Shuffler, American guitarist (The Bailey Brothers and the Happy Valley Boys) (d. 2014) |
| 43397 | April 15 | Birth | 1927 – Robert Mills, American physicist and academic (d. 1999) |
| 43398 | April 15 | Birth | 1929 – Gérald Beaudoin, Canadian lawyer and politician (d. 2008) |
| 43399 | April 15 | Birth | 1929 – Adrian Cadbury, English rower and businessman (d. 2015) |
| 43400 | April 15 | Birth | 1930 – Georges Descrières, French actor (d. 2013) |
| 43401 | April 15 | Birth | 1930 – Vigdís Finnbogadóttir, Icelandic educator and politician, 4th President of Iceland |
| 43402 | April 15 | Birth | 1931 – Kenneth Bloomfield, Irish civil servant |
| 43403 | April 15 | Birth | 1931 – Tomas Tranströmer, Swedish psychologist, poet, and translator, Nobel Prize laureate (d. 2015) |
| 43404 | April 15 | Birth | 1932 – Suresh Bhat, Indian poet and songwriter (d. 2003) |
| 43405 | April 15 | Birth | 1933 – Roy Clark, American singer and actor |
| 43406 | April 15 | Birth | 1933 – David Hamilton, English-French photographer and director |
| 43407 | April 15 | Birth | 1933 – Elizabeth Montgomery, American actress (d. 1995) |
| 43408 | April 15 | Birth | 1933 – Jim Towers, English footballer (d. 2010) |
| 43409 | April 15 | Birth | 1933 – Kōji Yada, Japanese voice actor (d. 2014) |
| 43410 | April 15 | Birth | 1934 – Soichiro Tahara, Japanese journalist |