 Masanori Miyamoto | Levantamiento de Pesas |
| Hazuki Miyamoto | Aquatics |
| Yusuke Miyata | Canoe/Kayak |
| Keiji Mizumoto | Canoe/Kayak |
 Lili Mizuno | Gimnasia |
| Naoki Mizunuma | Aquatics |
 Kristina Mladenovic | Tenis |
 Medhat Moataz | |
 Marlon Modolo Zanotelli | Ecuestre |
 Sondre Nordstad Moen | Atletismo |
 Jill Moffatt | Remo |
 Igor Mogne | Aquatics |
 Daniela Mogurean | Gimnasia |
 Khairul Anuar Mohamad | Tiro con arco |
| Nur Shazrin Mohamad Latif | Vela |
| Omar Mohamed | Gimnasia |
 Esraa Mohamed Ahmed Mohamed | Remo |
| Nur Suryani Mohd Taibi | Tiro |
| Lila Mohsen | Aquatics |
 Mohamed Mohumed | Atletismo |
 Pheeha Desmond Mokgobu | Atletismo |
| Stephen Mokoka | Atletismo |
 Barbora Mokosová | Gimnasia |
 Mario Mola | Triatlón |
| Yul Moldauer | Gimnasia |