127 deaths on this day in history.
| Date of death | Athlete | NOC(s) | Sport(s) | Year(s) |
|---|---|---|---|---|
| 12 August 1907 | Jean Boussod | POL | 1900 | |
| 12 August 1911 | John Sellars | SHO | 1908 | |
| 12 August 1914 | Georges Semichon | SAL | 1900 | |
| 12 August 1915 | William Moloney | ATH | 1900 | |
| 12 August 1915 | Edward Williams | ROW | 1908 | |
| 12 August 1920 | Walter Winans | SHO/SKL | 1908—1912 | |
| 12 August 1925 | Louis Charpillon | FEN | 1900 | |
| 12 August 1930 | Pascual Somma | FBL | 1924 | |
| 12 August 1932 | Jussi Salila | WRE | 1912—1924 | |
| 12 August 1939 | Max Dwinger | FEN | 1908 | |
| 12 August 1941 | Álvaro Catão | 1933—1935 | ||
| 12 August 1941 | Emil Hagelberg | MPN | 1920—1924 | |
| 12 August 1942 | Gustaf Carlson | FBL | 1924—1936 | |
| 12 August 1942 | Paul Stendel | GAR | 1904 | |
| 12 August 1943 | Reinier Blom | GAR | 1908—1928 | |
| 12 August 1943 | Rodolphe Catalaa | WLF | 1924 | |
| 12 August 1948 | Pál Vágó | ATT | 1932 | |
| 12 August 1949 | René Boulanger | GAR | 1920 | |
| 12 August 1951 | William Garcia | ATH | 1904 | |
| 12 August 1951 | Paul McSweeney | FBL | 1904 | |
| 12 August 1951 | Dušan Stefanović | 1927—1931 | ||
| 12 August 1953 | Julien Wartelle | GAR | 1920 | |
| 12 August 1954 | Lee Young-Min | FBL | 1948 | |
| 12 August 1955 | Miloslav Fleischmann | IHO | 1924 | |
| 12 August 1955 | Johann Flemer | GAR | 1908 | |
| 12 August 1955 | Johan Schmitt | GAR | 1908 | |
| 12 August 1956 | Paul Gerhardt | ATH | 1928 | |
| 12 August 1960 | Jim McPherson | FBL | 1920 | |
| 12 August 1961 | Francesca Costa | GAR | 1960 | |
| 12 August 1961 | Ingolf Hysing Olsen | SJP | 1924 | |
| 12 August 1962 | Henri Arthus | SAL | 1908 | |
| 12 August 1962 | Vibeke Lunde | SAL | 1952 | |
| 12 August 1962 | Mabel Parton | TEN | 1912 | |
| 12 August 1963 | Nelson de Souza | BKB | 1936 | |
| 12 August 1966 | Thomas Johnson | CTR | 1908—1920 | |
| 12 August 1967 | Risto Luukkonen | BOX | 1952 | |
| 12 August 1968 | Harry Adams | SHO | 1912—1920 | |
| 12 August 1968 | Jack Paul Hanlon | PNT | 1948—1952 | |
| 12 August 1969 | Alberto Della Beffa | BOB | 1952 | |
| 12 August 1969 | Josef Glaser | FBL | 1912 | |
| 12 August 1970 | Gudmund Grimstad | WRE | 1920 | |
| 12 August 1970 | Glenn Hartranft | ATH | 1924 | |
| 12 August 1971 | Eino Saarnikko | SHO | 1948 | |
| 12 August 1971 | Massinet Sorcinelli | BKB | 1948 | |
| 12 August 1973 | Libuše Veselá | FSK | 1928 | |
| 12 August 1974 | Harry Julius Larsen | ROW | 1936 | |
| 12 August 1974 | Homer Whelchel | ATH | 1924 | |
| 12 August 1975 | Werner Rittberger | FSK | 1928 | |
| 12 August 1976 | Birgir Kjaran | 1962—1974 | ||
| 12 August 1977 | René Tirard | ATH | 1920 | |
| 12 August 1979 | Angelo De Martini | CTR | 1924 | |
| 12 August 1985 | Masanori Tsuji | CRD | 1964 | |
| 12 August 1987 | Blago Barbieri | SWM | 1952 | |
| 12 August 1987 | Niels Knudsen | ATT | 1928 | |
| 12 August 1988 | Sakuta Takefushi | CCS/NCB | 1928 | |
| 12 August 1989 | Wilfred Burne | DIV | 1928 | |
| 12 August 1989 | Samuel Okwaraji | FBL | 1988 | |
| 12 August 1990 | Jimmy Stewart | BKB | 1936 | |
| 12 August 1991 | Édson | FBL | 1952 | |
| 12 August 1992 | José Antonio Rubio | BOX | 1948 | |
| 12 August 1994 | Harold Tower | ROW | 1932 | |
| 12 August 1994 | Włodzimierz Źróbik | BOB | 1956 | |
| 12 August 1996 | Guy Nosbaum | ROW | 1952—1960 | |
| 12 August 1996 | George Parsons | SAL | 1956 | |
| 12 August 1997 | Ambrogio Bessi | BKB | 1936 | |
| 12 August 1997 | Bob Denton | FBL | 1936 | |
| 12 August 1997 | David Schweitzer | FBL | 1976 | |
| 12 August 1998 | Dagoberto Borges | FEN | 1968 | |
| 12 August 1999 | Giuseppe Beviacqua | ATH | 1936 | |
| 12 August 1999 | Jean Drapeau | 1971—1978 | ||
| 12 August 1999 | Wilfred Kalaugher | ATH | 1928 | |
| 12 August 2000 | Fevzi Büyükyıldırım | FBL | 1952 | |
| 12 August 2002 | Knud Lundberg | FBL | 1948—1952 | |
| 12 August 2003 | Rolland Étienne | BKB | 1936 | |
| 12 August 2004 | Bjarne Andersson | CCS | 1968 | |
| 12 August 2004 | Larry Mason | SSK | 1960 | |
| 12 August 2004 | Perica Vlašić | ROW | 1956—1960 | |
| 12 August 2005 | Morciré Sylla | FBL | 1968 | |
| 12 August 2005 | Jan Szymański | WRE | 1980 | |
| 12 August 2006 | Noel Everett | SAL | 1972 | |
| 12 August 2006 | Georgi Raykov | WRE | 1980 | |
| 12 August 2006 | Jan Steler | 1993 | ||
| 12 August 2006 | Åke Stenqvist | ATH | 1936 | |
| 12 August 2007 | John Gillman | SHO | 1976 | |
| 12 August 2007 | Allen McClure | SAL | 1960 | |
| 12 August 2008 | Boris Kulayev | WRE | 1956 | |
| 12 August 2009 | Karl Holzapfel | HOC | 1948—1952 | |
| 12 August 2009 | Goffredo Sussi | BKB | 1960—1964 | |
| 12 August 2009 | Magdeleine Yerlès | 1996 | ||
| 12 August 2010 | Manfred Homberg | BOX | 1960 | |
| 12 August 2010 | Velimir Kljaić | HBL | 1996 | |
| 12 August 2010 | Victor Kremer | SHO | 1960—1964 | |
| 12 August 2010 | Artur Olech | BOX | 1964—1968 | |
| 12 August 2011 | Kunio Nando | SSK | 1936 | |
| 12 August 2011 | Pierpaolo Spangaro | SWM | 1960—1964 | |
| 12 August 2012 | Pedro Gasset | HOC | 1948 | |
| 12 August 2012 | Jakov Labura | ROW | 1948 | |
| 12 August 2013 | Gonzalo, Duque Fernández de Córdoba | SAL | 1960—1972 | |
| 12 August 2013 | Henny ter Weer | FEN | 1948 | |
| 12 August 2014 | Frank Eisenberg | ATH | 1972 | |
| 12 August 2014 | Ênio Figueiredo | VVO | 1980—1984 | |
| 12 August 2014 | Ricardo González | PEL | 1992 | |
| 12 August 2014 | Abel Laudonio | BOX | 1956—1960 | |
| 12 August 2014 | Kazimierz Trampisz | FBL | 1952 | |
| 12 August 2016 | Gonzalo Manibog | WRE | 1952 | |
| 12 August 2016 | Juan Pedro de Miguel | HBL | 1980—1984 | |
| 12 August 2016 | Dick Pappenheim | ALP | 1952 | |
| 12 August 2016 | Klaus Scheurell | FBL | 1980 | |
| 12 August 2017 | Zdravko Hebel | WPO | 1968—2002 | |
| 12 August 2017 | Don Pettie | ATH | 1948 | |
| 12 August 2018 | Willy Rasmussen | ATH | 1960—1964 | |
| 12 August 2019 | Jean-Paul Capelle | HOC | 1968 | |
| 12 August 2020 | Gergely Kulcsár | ATH | 1960—1972 | |
| 12 August 2021 | Haydée Coloso | SWM | 1960 | |
| 12 August 2021 | Karl-Friedrich Haas | ATH | 1952—1956 | |
| 12 August 2021 | Robin Judah | SAL | 1968 | |
| 12 August 2022 | Eino Kalpala | ALP | 1952 | |
| 12 August 2022 | Zbigniew Malicki | SAL | 1980 | |
| 12 August 2022 | Motiullah | HOC | 1956—1964 | |
| 12 August 2022 | Vyacheslav Semyonov | FBL | 1972 | |
| 12 August 2023 | Helen Don-Duncan | SWM | 2000 | |
| 12 August 2023 | Sándor Eckschmiedt | ATH | 1964—1972 | |
| 12 August 2023 | Eduardo de Queiroz | SAL | 1964 | |
| 12 August 2023 | Allan Smith | DIV | 1952 | |
| 12 August 2024 | Marinella Bortoluzzi | ATH | 1960 | |
| 12 August 2024 | Valentin Piseyev | FSK | 1972—1976 | |
| 12 August 2024 | Fritz Schmidt | HOC | 1968—1976 |