| 25561 | March 6 | Death | 1976 – Mary Petty, American illustrator (b. 1899) |
| 25562 | March 6 | Death | 1976 – Maxie Rosenbloom, American boxer and actor (b. 1903) |
| 25563 | March 6 | Death | 1977 – Alvin R. Dyer, American religious leader (b. 1903) |
| 25564 | March 6 | Death | 1978 – Dennis Viollet, English-American soccer player and manager (b. 1933) |
| 25565 | March 6 | Death | 1981 – George Geary, English cricketer and coach (b. 1893) |
| 25566 | March 6 | Death | 1982 – Ayn Rand, Russian-American philosopher, author, and playwright (b. 1905) |
| 25567 | March 6 | Death | 1984 – Billy Collins, Jr., American boxer (b. 1961) |
| 25568 | March 6 | Death | 1984 – Martin Niemöller, German pastor and theologian (b. 1892) |
| 25569 | March 6 | Death | 1984 – Homer N. Wallin, American admiral (b. 1893) |
| 25570 | March 6 | Death | 1984 – Henry Wilcoxon, Dominican-American actor and producer (b. 1905) |
| 25571 | March 6 | Death | 1986 – Georgia O'Keeffe, American painter (b. 1887) |
| 25572 | March 6 | Death | 1988 – Mairéad Farrell, Provisional Irish Republican Army volunteer (b. 1957) |
| 25573 | March 6 | Death | 1988 – Daniel McCann, Provisional Irish Republican Army volunteer (b. 1957) |
| 25574 | March 6 | Death | 1988 – Seán Savage, Provisional Irish Republican Army volunteer (b. 1965) |
| 25575 | March 6 | Death | 1994 – Melina Mercouri, Greek actress, singer, and politician, 9th Greek Minister of Culture (b. 1920) |
| 25576 | March 6 | Death | 1997 – Cheddi Jagan, Guyanese politician, 4th President of Guyana (b. 1918) |
| 25577 | March 6 | Death | 1997 – Michael Manley, Jamaican soldier, pilot, and politician, 4th Prime Minister of Jamaica (b. 1924) |
| 25578 | March 6 | Death | 1997 – Ursula Torday, English author (b. 1912) |
| 25579 | March 6 | Death | 1999 – Isa bin Salman Al Khalifa, Bahrain king (b. 1933) |
| 25580 | March 6 | Death | 2000 – John Colicos, Canadian actor (b. 1928) |
| 25581 | March 6 | Death | 2001 – Balla Moussa Keïta, Malian actor (b. 1934) |
| 25582 | March 6 | Death | 2001 – Kim Walker, American actress (b. 1968) |
| 25583 | March 6 | Death | 2002 – Bryan Fogarty, Canadian ice hockey player (b. 1969) |
| 25584 | March 6 | Death | 2004 – Hercules, American wrestler (b. 1957) |
| 25585 | March 6 | Death | 2004 – Frances Dee, American actress and singer (b. 1909) |
| 25586 | March 6 | Death | 2005 – Hans Bethe, German-American physicist and academic, Nobel Prize laureate (b. 1906) |
| 25587 | March 6 | Death | 2005 – Danny Gardella, American baseball player and trainer (b. 1920) |
| 25588 | March 6 | Death | 2005 – Tommy Vance, English radio host (b. 1943) |
| 25589 | March 6 | Death | 2005 – Teresa Wright, American actress and singer (b. 1918) |
| 25590 | March 6 | Death | 2006 – Anne Braden, American activist (b. 1924) |