| Mister P | 37.5 | 1986 | CRN |
| Mister Z | 28.5 | 2014 | Benetti SpA |
| Mistral | 33.4 | 1962 | Benetti M&B |
| Mistral Blue | 33.13 | 1971 | Chantiers Naval de Biot |
| Mistress | 46 | 1991 | Benetti SpA |
| Misty | 28.65 | 1985 | Stephens Marine |
| Misty Fjords | 41.45 | 1945 | Anderson & Cristofani |
| Mita | 30.6 | 2012 | Custom Line |
| MitseaAH | 47.24 | 2004 | Pendennis Shipyard Ltd |
| Mixer | 32.1 | 2002 | Nordlund Boat Company. Inc. |
| Mizar | 31.67 | 1973 | Benetti SpA |
| Mizu | 53.03 | 2004 | Oceanfast |
| Mizu | 30.13 | 2021 | Ferretti Yachts |
| Moat | 35.2 | 2016 | Nautor Swan |
| Moatize | 45.6 | 1999 | Pendennis Shipyard Ltd |
| Moca | 63.5 | 2015 | Benetti SpA |
| Mocean | 27.9 | 2008 | Jade Yachts |
| Mocean II | 37.95 | 2020 | Sanlorenzo |
| Modus | 40.2 | 2014 | Tecnomar |
| Moecca | 45 | 1993 | Oceanfast |
| Mogambo | 73.51 | 2012 | Nobiskrug |
| Mohasuwei | 32.96 | 2009 | Cantieri di Pisa |
| Mojito | 32.77 | 1969 | Breaux Bay Craft |
| Mojo | 30.2 | 1969 | Dittmar Donaldson |
| Mojo | 49 | 1958 | Harland and Wolff Heavy Industries |
| Moka | 49.9 | 2011 | Overmarine Group SPA |
| Moka | 42.2 | 2015 | Sanlorenzo |
| Molly Malone | 29.41 | 2008 | Princess Yachts |
| Mon Sheri | 32 | 1990 | Broward Marine |
| Monaco | 37.9 | 1982 | Feadship |
| Monaco | 39 | 1977 | CRN |
| Monarch | 30 | 1992 | Westship Yachts |
| Mone | 38.55 | 2010 | Dominator Yachts |
| Money Cat | 29.57 | 2003 | Trans World Boat Building Co. Ltd. |
| Monica | 36.92 | 2021 | Sanlorenzo |
| Monkey | 31.7 | 2011 | Sanlorenzo |
| Monkey Business | 28 | 2008 | Permare s.r.l. |
| Monkeyfish | 33 | 2018 | Custom Line |
| Monochrome | 29.07 | 2024 | Arcadia Yachts |
| Monokini | 44 | 2013 | Baglietto S.p.A. |
| Monopoly | 29.11 | 2022 | Princess Yachts |
| Monsy | 41.86 | 1965 | Brodrene Lothe AS |
| Mont-Al Lawz | 49.8 | 2018 | Benetti SpA |
| Montana Moon | 36 | 1995 | Hatteras Yachts |
| Monte Carlo | 40.24 | 1988 | Amels |
| Monte Carlo | 30.7 | 2000 | Falcon Yachts S.r.l. |
| Monte Cassino | 32.31 | 1990 | Broward Marine |
| Montecristo | 39.28 | 1978 | Astilleros Armon |
| Montego | 28.35 | 1967 | Brodogradiliste Punat |
| Montkaj | 78.03 | 1995 | Amels |
