| Adventure | 52.7 | 2004 | Feadship |
| Adventure | 33.53 | 1990 | Veb J.Warnke |
| Adva | 35.5 | 2020 | Benetti SpA |
| Adriatic Star | 36 | 1987 | Royal Hakvoort Shipyard |
| Adriatic Queen | 32.92 | 1992 | Alpha Marine Ltd - Yacht Designers & Naval Architects |
| Adriatic Escape | 30.48 | 1990 | Burger Boat Company |
| Adriatic Blues | 29.5 | 2001 | Maiora |
| Adri | 45.3 | 2024 | Radez d.d. Shipyard |
| Adornate | 44 | 1961 | Scheepswerf De Industrie |
| Adoria | 46.7 | 1975 | Campanella S.p.A. (Cantieri Navali) |
| Adora | 61.5 | 2010 | Benetti SpA |
| Admiral XL | 36 | 2005 | SES Yachts |
| Admiral Bellingshausen | 28.52 | 1984 | Jongert Yachts |
| Adler | 36 | 1987 | Baglietto S.p.A. |
| Adler | 41.45 | 2005 | Lauderdale Marine Center |
| Adix | 64.85 | 1984 | Astilleros de Mallorca S.A. |
| Adesso | 31.6 | 1995 | CCYD |
| Adella | 35.2 | 2023 | Sunseeker |
| Adelia | 33 | 2021 | Custom Line |
| Adele | 54.64 | 2005 | Vitters Shipyard |
| Adelaar | 37.8 | 1902 | Stadskanaal Shipyards |
| Adela | 28.93 | 2023 | Sanlorenzo |
| Adela | 55.44 | 1995 | Pendennis Shipyard Ltd |
| Adel | 28.96 | 2022 | Princess Yachts |
| Adel | 28.5 | 2016 | Benetti SpA |
| Adastra | 42.5 | 2012 | McConaghy Boats |
| Adar | 29.7 | 2011 | Custom Line |
| Adamas V | 65.25 | 1987 | Cantieri Navali Nicolini Srl |
| Adamaris | 43 | 2009 | Ürkmezler Yachts |
| Adamar | 38.2 | 2024 | Azimut Yachts |
| Adak | 27.68 | 1944 | Stephens Marine |
| Adagio | 35.05 | 2018 | Horizon Yachts |
| Adagio | 33.5 | 2001 | Chantier Multiplast |
| Ada | 30.26 | 2008 | De Birs Yachts |
| Ad-Vantage | 53.25 | 2012 | Damen Yachting |
| Ad Duwaiha | 31 | 2014 | Baia Yachts |
| Active Octo | 31.7 | 2002 | Destiny Yachts |
| Active Gazella | 30.8 | 1974 | CRN |
| Activ | 42 | 1951 | J. Ring Andersen Skibsvaerft |
| Action | 37.3 | 2015 | Royal Huisman |
| Acta | 51.21 | 2007 | Feadship |
| Act Nine | 28.65 | 2000 | Horizon Yachts |
| Acqua Chiara | 47 | 2025 | Columbus Yachts |
| Acqua | 33 | 2020 | Custom Line |
| Acoraas | 37.77 | 1922 | Ramage & Ferguson |
| Acoa | 28 | 1985 | Dubbel & Jesse Yachtbau GmbH & Co. KG |
| Achilles III | 36.58 | 1957 | Samuel White |
| Achilles | 55.3 | 1984 | CRN |
| Accidental Success 2 | 28.06 | 2023 | Sunseeker |
| Acceptus | 34 | 2011 | Custom Line |
