| Maestro | 41.1 | 2013 | Mondomarine SpA |
| Magari | 42 | 2011 | Codecasa S.p.A. |
| Magic | 30.48 | 2005 | Hatteras Yachts |
| Magic Blue | 28.54 | 2002 | Wally |
| Magic Carpet e | 30.48 | 2025 | Persico Marine |
| Magic Dream | 30.07 | 2006 | Falcon Yachts S.r.l. |
| Magic Life I | 40 | 1993 | Aegean Yacht |
| Magic of Ayr | 27.96 | 2021 | Pershing S.p.a. |
| Magiks | 30.2 | 2008 | Cantieri Navali Rizzardi |
| Magix | 37.79 | 1992 | Heesen Yachts |
| Magna Grecia | 63.8 | 1986 | Elsflether Werft GmbH & Co. KG |
| Magnet | 48 | 2020 | Metal Shark Boats |
| Magnetique | 28.6 | 2005 | Admiral |
| Magnifico | 31.4 | 2007 | Overmarine Group SPA |
| Magnifico | 31.46 | 2004 | Astondoa S.A. (Astilleros) |
| Magnolia | 31.85 | 2010 | Orkun Yachting |
| Magnum Ride | 30.48 | 2003 | Hatteras Yachts |
| Maha | 44.8 | 1938 | Defoe Shipbuilding Co. |
| Mahakala | 32 | 2020 | Azimut Yachts |
| Mahalo | 30 | 2014 | Mulder Shipyard |
| Mahoenui | 40.16 | 2015 | Princess Yachts |
| Mai | 27.6 | 2010 | Sanlorenzo |
| Mai Dire Mai | 30.4 | 2024 | Filippetti Yacht |
| Maia | 29.5 | 2010 | Azimut Yachts |
| Maia | 53.1 | 2025 | Radez d.d. Shipyard |
| Maid Marian 2 | 33.16 | 1931 | New York Yacht & Launch Co |
| Maiden Hong Kong | 35.5 | 2004 | DK Yachts |
| Maidomo | 32.5 | 2007 | Admiral |
| Main | 65 | 2008 | Codecasa S.p.A. |
| Maiora 30/257 | 30.5 | 2025 | Maiora |
| Maiora 33 | 32.5 | 2011 | Maiora |
| Maiora 33 DP # 179 | 33 | 2008 | Maiora |
| Maisha | 33.2 | 2006 | Cyrus Yachts |
| Maison Blanche | 49.71 | 2012 | Westport Yachts |
| Mait III | 31.43 | 1971 | Benetti SpA |
| Maje | 29.85 | 2023 | Sunseeker |
| Majestic | 61.2 | 2007 | Feadship |
| Majesty 100 Terrace/01 | 32.25 | 2025 | Gulf Craft |
| Majesty 100/15 | 31.68 | 2024 | Gulf Craft |
| Majesty 111 | 34.1 | 2024 | Gulf Craft |
| Majesty 120 #5 | 37.54 | 2024 | Gulf Craft |
| Majesty 90/04 | 28.03 | 2018 | Gulf Craft |
| Majesty Elenoliya | 53.4 | 2008 | Mariotti Yachts |
| Majesty Yachts 101/05 | 30.78 | 2009 | Gulf Craft |
| Majesty Yachts 101/09 | 30.78 | 2012 | Gulf Craft |
| Majic | 29.85 | 2023 | Sunseeker |
| Majola | 32.28 | 2022 | Sanlorenzo |
| Major Affair | 27.94 | 2007 | Sunseeker |
| Mak | 28.23 | 2010 | Monte Fino |
| Makani II | 34.53 | 2012 | Sunseeker |
