| Yam 2 | 38 | 2008 | Perini Navi |
| Yamakay | 42.36 | 1994 | CMN Yacht Division |
| Yanbu | 50.26 | 1931 | Bath Iron Works |
| Yanika | 38 | 1997 | Durukos |
| Yanneke Too | 36 | 1996 | Camper & Nicholsons Shipyard |
| Yapai | 33.45 | 2012 | Poly Marine & Engineering Co. Ltd. |
| Yas | 141 | 1981 | Koninklijke Schelde |
| Yas | 30.75 | 2010 | Azimut Yachts |
| Yasmine of The Sea | 80 | 2001 | Oceanco |
| Yasson | 31.8 | 2006 | Canados |
| Yatagan | 30 | 1970 | Vosper Thornycroft |
| Yazz | 55.98 | 2007 | Aegean Yacht |
| Yersin | 76.6 | 2015 | Piriou |
| Yes | 34.1 | 2011 | Westport Yachts |
| Yes | 38.6 | 1982 | Feadship |
| Yesenia | 33.3 | 2020 | Overmarine Group SPA |
| Ylang Ylang | 31.5 | 2007 | Falcon Yachts S.r.l. |
| YoPur | 50.5 | 1964 | Nuovi Cantieri Apuania S.p.A. |
| Yogi | 60.2 | 2011 | Turquoise Yachts |
| Yolo | 39.62 | 2004 | Westport Yachts |
| Yolo | 34.1 | 2007 | Leopard Yachts |
| Yolo Too | 28.9 | 2001 | Custom Line |
| Yot Capri | 28.27 | 2003 | Overmarine Group SPA |
| You & Me | 47 | 1999 | Heesen Yachts |
| Yu Feng Zhe 1 | 43 | 2019 | Heysea Yachts |
| Yunga | 30.5 | 2021 | AB Yachts |
| Yunona | 28.02 | 2008 | Sunseeker |
| Yuzhou | 36.58 | 2013 | Azimut Yachts |
| Yvonne | 33.91 | 2011 | Sunseeker |
| Yvonne | 28.31 | 2015 | Custom Line |
| Z. | 65.7 | 2014 | Amels |
| Zabava | 30.7 | 2000 | Heesen Yachts |
| Zabeel | 45.72 | 1963 | |
| Zaca | 43 | 1930 | Nunes |
| Zaca A Te Moana | 43.8 | 1992 | De Amstel |
| Zaliv III | 49.37 | 2011 | Mondomarine SpA |
| ZanZiba | 45.9 | 2015 | Etemoglu Boatyard |
| Zantino III | 32.3 | 1986 | Denison |
| Zanzibar | 31.25 | 1993 | Tréhard Marine |
| Zanzoun | 39.1 | 1984 | Cantieri di Pisa |
| Zaphira | 28.5 | 2012 | Benetti SpA |
| Zarina | 32.51 | 2009 | President Boat International Co., Ltd. |
| Zazou | 65 | 2021 | Benetti SpA |
| ZeXplorer | 41 | 2013 | Newcastle Marine |
| Zebu | 31 | 1938 | Ab Torre Holms Skeppsvarf |
| Zeemar | 30.7 | 2016 | Aydos Yat |
| Zeepaard | 37.18 | 2003 | JFA Yachts |
| Zefira | 49.69 | 2010 | Fitzroy Yachts |
| Zefzaf | 56 | 2007 | Benetti SpA |
| Zehra 1 | 28.95 | 2018 | Benetti SpA |
