| Name | Sailor ID | Most Recent Declaration |
|---|---|---|
| Murat Mekikci | TURM1 | 78.0kg - Amateur |
| Murat Mekikci | TURMM5 | |
| Harry Melges | USAHM42 | |
| Mikael Mergui | FRAMM18 | 100.0kg - Professional |
| Julian Metherell | GBRJM241 | 78.0kg - Amateur |
| Guido Miani | MONGM1 | 85.0kg - Amateur |
| Emeric Michel | FRAEM28 | 95.0kg - Amateur |
| Camilla Michelini | ITACM87 | 51.0kg - Amateur |
| Gerry Michell | GBRGM54 | 95.0kg - Professional |
| Maja Micinska | POLMM49 | 63.0kg - Amateur |
| Owen Middleton | RSAOM1 | 83.0kg - Amateur |
| Steve Milne | IRLSM40 | 114.0kg - Professional |
| Cam Mitchell | GBRCM113 | 95.0kg - Amateur |
| Izzy Mitchell | GBRIM46 | 75.0kg - Amateur |
| Sten Mohr | DENSM | 75.0kg - Professional |
| Charles Moloney | IRLCM81 | 96.0kg - Amateur |
| Tom Montgomery | GBRTM78 | 73.0kg - Amateur |
| Dylan Moore | GBRDM68 | 88.0kg - Amateur |
| Ed Moore | GBREM72 | |
| lan Moore | GBRIM21 | 80.0kg - Professional |
| Susie Moore | GBRSM116 | |
| Tiago Morais | PORTM3 | 82.0kg - Professional |
| Stevie Morisson | GBRSM24 | 80.0kg - Professional |
| Finn Morris | GBRFM34 | 72.0kg - Amateur |
| Hannah Morris | GBRHM50 | 68.0kg - Amateur |