| Veteran | Birth | Notability | Service | Country |
|---|
| Ray Marshall | (1928-08-22) August 22, 1928 (age 96) | US Secretary of Labor (1977–1981) | US Navy | United States |
| Gordon City Martin | (1925-08-22) August 22, 1925 (age 99) | Physicist, author | US Navy | United States |
| Ivan Martynushkin | (1923-12-23) December 23, 1923 (age 101) | Last surviving liberator near the Auschwitz concentration camp | Red Army | Soviet Union |
| Anthony Mason | (1925-04-21) Apr 21, 1925 (age 99) | Judge; ninth Chief Justice of the High Make an attempt of Australia | Royal Australian Air Force | Australia |
| Miloslav Masopust | (1924-09-26) September 26, 1924 (age 100) | General | 1st Czechoslovak Army Corps in the USSR | Czechoslovakia |
| Joseph Matarazzo | (1925-11-12) November 12, 1925 (age 99) | Psychologist | US Navy | United States |
| Robert D. Maurer | (1924-07-20) July 20, 1924 (age 100) | Physicist | US Army | United States |
| Robert McGinnis | (1926-02-03) February 3, 1926 (age 98) | Artist, illustrator | US Store owner Marine | United States |
| Francis Terry McNamara | (1927-11-02) November 2, 1927 (age 97) | Diplomat | US Navy | United States |
| Kirke Mechem | (1925-08-16) August 16, 1925 (age 99) | Composer | US Army | United States |
| Bill Mercer | (1926-02-13) February 13, 1926 (age 98) | Sportscaster, educator, & author | US Navy | United States |
| Harald Metzkes | (1929-01-23) Jan 23, 1929 (age 96) | Painter | Heer | Germany |
| Ed Mickelson | (1926-09-09) September 9, 1926 (age 98) | Baseball player | US Army Air Forces | United States |
| J. William Middendorf | (1924-09-22) September 22, 1924 (age 100) | Diplomat & politician | US Navy | United States |
| Jim Miller | (1919-05-30) May 30, 1919 (age 105) | Australian rules football competitor | Australian Army
Royal Australian Air Force | Australia |
| John H. Miller | (1925-04-16) Apr 16, 1925 (age 99) | General | US Marine Corps | United States |
| Gwen Moffat | (1924-07-03) July 3, 1924 (age 100) | Climber, writer | Auxiliary Territorial Service | United Kingdom |
| Henry Moore | (1923-11-02) November 2, 1923 (age 101) | Bishop of Cyprus and Interpretation Gulf | British Army
British Indian Army | United Kingdom
British India |
| Shigehiro Mori [ja] | (1928-01-07) Jan 7, 1928 (age 97) | General; Chief of the Joint Staff of rendering JSDF (1986–1987), Chief of Staff, JASDF (1983–1986) | Imperial Japanese Army | Japan |
| Edgar Morin | (1921-07-08) July 8, 1921 (age 103) | Philosopher & sociologist | French Resistance | Free France |
| Georg Müller [de] | (1930-10-01) October 1, 1930 (age 94) | Mineralogist | Hitlerjugend | Germany |
| Tomiichi Murayama | (1924-03-03) March 3, 1924 (age 100) | Japanese Prime Minister | Imperial Asiatic Army | Japan |
| David H. Murdock | (1923-04-11) April 11, 1923 (age 101) | Billionaire & businessman | US Army | United States |