| 27451 | March 11 | Death | 1949 – Anastasios Charalambis, Greek general and politician, 109th Prime Minister of Greece (b. 1862) |
| 27452 | March 11 | Death | 1949 – Henri Giraud, French general and politician (b. 1879) |
| 27453 | March 11 | Death | 1951 – János Zsupánek, Slovene poet and author (b. 1861) |
| 27454 | March 11 | Death | 1952 – Pierre Renoir, French actor and director (b. 1885) |
| 27455 | March 11 | Death | 1955 – Alexander Fleming, Scottish biologist, pharmacologist, and botanist, Nobel Prize laureate (b. 1881) |
| 27456 | March 11 | Death | 1955 – Oscar F. Mayer, German-American businessman, founded Oscar Mayer (b. 1859) |
| 27457 | March 11 | Death | 1957 – Richard E. Byrd, American admiral and explorer (b. 1888) |
| 27458 | March 11 | Death | 1958 – Ole Kirk Christiansen, Danish businessman, founded The Lego Group (b. 1891) |
| 27459 | March 11 | Death | 1959 – Lester Dent, American author (b. 1904) |
| 27460 | March 11 | Death | 1960 – Roy Chapman Andrews, American paleontologist and explorer (b. 1884) |
| 27461 | March 11 | Death | 1965 – Harry Altham, English crickter, historian and coach (b. 1888) |
| 27462 | March 11 | Death | 1965 – James Reeb, American minister and activist (b. 1927) |
| 27463 | March 11 | Death | 1967 – Geraldine Farrar, American soprano and actress (b. 1882) |
| 27464 | March 11 | Death | 1968 – Haşim İşcan, Turkish educator and politician, 18th Mayor of İstanbul (b. 1898) |
| 27465 | March 11 | Death | 1969 – John Daly, Irish runner (b. 1880) |
| 27466 | March 11 | Death | 1969 – John Wyndham, English soldier and author (b. 1903) |
| 27467 | March 11 | Death | 1970 – Erle Stanley Gardner, American lawyer and author (b. 1889) |
| 27468 | March 11 | Death | 1970 – Russell van Horn, American boxer (b. 1885) |
| 27469 | March 11 | Death | 1971 – Philo Farnsworth, American inventor (b. 1906) |
| 27470 | March 11 | Death | 1971 – Whitney Young, American activist (b. 1921) |
| 27471 | March 11 | Death | 1977 – Ulysses S. Grant IV, American geologist and paleontologist (b. 1893) |
| 27472 | March 11 | Death | 1977 – Alberto Rodriguez Larreta, Argentinian race car driver (b. 1934) |
| 27473 | March 11 | Death | 1978 – Claude François, Egyptian-French singer-songwriter and dancer (b. 1939) |
| 27474 | March 11 | Death | 1978 – Sofia Vembo, Greek singer and actress (b. 1910) |
| 27475 | March 11 | Death | 1980 – Chandra Bhanu Gupta, Indian politician, 4th Chief Minister of Uttar Pradesh (b. 1902) |
| 27476 | March 11 | Death | 1982 – Edmund Cooper, English poet and author (b. 1926) |
| 27477 | March 11 | Death | 1982 – Horace Gregory, American poet, translator, and academic (b. 1898) |
| 27478 | March 11 | Death | 1984 – Kostas Roukounas, Greek singer-songwriter (b. 1903) |
| 27479 | March 11 | Death | 1986 – Sonny Terry, American singer and harmonica player (b. 1911) |
| 27480 | March 11 | Death | 1987 – Joe Gladwin, English actor (b. 1906) |