The following is a list of notable world figures who died on August 20th.

  1. 535 - Mochta of Louth, disciple of St. Patrick
  2. 984 - Pope John XIV
  3. 1384 - Geert Groote, Dutch founder of the Brethren of the Common Life (b. 1340)
  4. 1572 - Miguel López de Legazpi, Spanish conquistador (b. 1502)
  5. 1580 - Jeronymo Osorio, Portuguese historian (b. 1506)
  6. 1611 - Tomás Luis de Victoria, Spanish composer (b. 1548)
  7. 1639 - Martin Opitz von Boberfeld, German poet (b. 1597)
  8. 1643 - Anne Hutchinson, English Puritan preacher (b. 1591)
  9. 1648 - Edward Herbert, 1st Baron Herbert of Cherbury, English diplomat, poet, and philosopher (b. 1583)
  10. 1672 - Johan de Witt, Dutch politician (b. 1625)
  11. 1672 - Cornelis de Witt, Dutch politician (b. 1623)
  12. 1680 - William Bedloe, English informer (b. 1650)
  13. 1701 - Charles Sedley, English playwright (b. 1639)
  14. 1707 - Nicolas Gigault, French organist and composer (b. 1627)
  15. 1773 - Enrique Florez, Spanish historian (b. 1701)
  16. 1811 - Louis Antoine de Bougainville, French explorer (b. 1729)
  17. 1823 - Pope Pius VII (b. 1740)
  18. 1825 - William Waldegrave, 1st Baron Radstock, Governor of Newfoundland (b. 1753)
  19. 1887 - Jules Laforgue, French poet (b. 1860)
  20. 1904 - René Waldeck-Rousseau, French statesman (b. 1846)
  21. 1912 - William Booth, English founder of the Salvation Army (b. 1829)
  22. 1914 - Pope Pius X (b. 1835)
  23. 1915 - Paul Ehrlich, German scientist, recipient of the Nobel Prize in Physiology or Medicine (b. 1854)
  24. 1917 - Adolf von Baeyer, German chemist, Nobel Prize laureate (b. 1835)
  25. 1961 - Percy Williams Bridgman, American physicist, Nobel Prize laureate (b. 1882)
  26. 1965 - Jonathan Myrick Daniels, Civil Rights Martyr (b. 1939)
  27. 1971 - Rashid Minhas, Pakistani Air Force pilot (b. 1951)
  28. 1980 - Joe Dassin, American singer (b. 1938)
  29. 1986 - Milton Acorn, Canadian poet (b. 1923)
  30. 1997 - Norris Bradbury, American physicist (b. 1909)
  31. 1998 - Raquel Rastenni, Danish singer (b. 1915)
  32. 2001 - Sir Fred Hoyle, English astronomer and science fiction writer (b. 1915)
  33. 2001 - Kim Stanley, American actress (b. 1925)
  34. 2005 - Thomas Herrion, American football player (heart disease) (b. 1981)
  35. 2005 - Krzysztof Raczkowski, Polish drummer (b. 1970)
  36. 2006 - Joe Rosenthal, American photographer (b. 1911)