| 144391 | December 23 | Death | 1805 – Pehr Osbeck, Swedish explorer and author (b. 1723) |
| 144392 | December 23 | Death | 1834 – Thomas Robert Malthus, English economist and demographer (b. 1766) |
| 144393 | December 23 | Death | 1884 – John Chisum, American businessman (b. 1824) |
| 144394 | December 23 | Death | 1902 – Frederick Temple, English archbishop and academic (b. 1821) |
| 144395 | December 23 | Death | 1912 – Otto Schoetensack, German anthropologist and academic (b. 1850) |
| 144396 | December 23 | Death | 1926 – Swami Shraddhanand, Indian monk, missionary, and educator (b. 1856) |
| 144397 | December 23 | Death | 1930 – Mustafa Fehmi Kubilay, Turkish lieutenant and educator (b. 1906) |
| 144398 | December 23 | Death | 1931 – Wilson Bentley, American meteorologist and photographer (b. 1865) |
| 144399 | December 23 | Death | 1939 – Anthony Fokker, Indonesian-Dutch pilot and engineer, designed the Fokker Dr.I and Fokker D.VII (b. 1890) |
| 144400 | December 23 | Death | 1946 – Kiki Preston, American heiress (b. 1898) |
| 144401 | December 23 | Death | 1946 – John A. Sampson, American gynecologist and academic (b. 1873) |
| 144402 | December 23 | Death | 1948 – Akira Mutō, Japanese general (b. 1883) |
| 144403 | December 23 | Death | 1948 – Hideki Tojo, Japanese general and politician, 40th Prime Minister of Japan (b. 1884) |
| 144404 | December 23 | Death | 1950 – Vincenzo Tommasini, Italian composer (b. 1878) |
| 144405 | December 23 | Death | 1953 – Lavrentiy Beria, Georgian-Russian general and politician (b. 1899) |
| 144406 | December 23 | Death | 1954 – René Iché, French soldier and sculptor (b. 1897) |
| 144407 | December 23 | Death | 1961 – Carolyn Sherwin Bailey, American author (b. 1875) |
| 144408 | December 23 | Death | 1961 – Kurt Meyer, German SS officer (b. 1910) |
| 144409 | December 23 | Death | 1963 – Vida Hope, English actress (b. 1918) |
| 144410 | December 23 | Death | 1970 – Charles Ruggles, American actor and singer (b. 1886) |
| 144411 | December 23 | Death | 1970 – Aleksander Warma, Estonian lieutenant and politician (b. 1890) |
| 144412 | December 23 | Death | 1972 – Andrei Tupolev, Russian engineer, designed the Tupolev Tu-95 and Tupolev Tu-104 (b. 1888) |
| 144413 | December 23 | Death | 1973 – Charles Atlas, Italian-American bodybuilder (b. 1892) |
| 144414 | December 23 | Death | 1979 – Peggy Guggenheim, American-Italian art collector (b. 1898) |
| 144415 | December 23 | Death | 1982 – Jack Webb, American actor, director, producer, and screenwriter (b. 1920) |
| 144416 | December 23 | Death | 1983 – Colin Middleton, Irish painter and illustrator (b. 1910) |
| 144417 | December 23 | Death | 1984 – Joan Lindsay, Australian author (b. 1896) |
| 144418 | December 23 | Death | 1992 – Vincent Fourcade, French interior designer (b. 1934) |
| 144419 | December 23 | Death | 1992 – Eddie Hazel, American guitarist (Parliament-Funkadelic and The Parliaments) (b. 1950) |
| 144420 | December 23 | Death | 1992 – Vyacheslav Kurennoy, Russian water polo player (b. 1932) |