| Carom | 30.48 | 1999 | Sanlorenzo |
| Carpe Diem | 32.2 | 2007 | Leopard Yachts |
| Carpe Diem | 29.05 | 2001 | Intermarine Savannah |
| Carpe Diem | 29.85 | 2022 | Sunseeker |
| Carpe Diem | 58.22 | 2011 | Trinity Yachts |
| Carpe Diem | 32 | 2022 | Azimut Yachts |
| Carpe Diem 1 | 31 | 2003 | Etemoglu Boatyard |
| Carpe Diem V | 47 | 2012 | Koyunbaba Boat Manufacturing |
| Carson | 45.42 | 2015 | Newcastle Marine |
| Carte Blanche | 48.67 | 2008 | Christensen Shipyards, LLC. |
| Cartigan | 38.1 | 1927 | American Brown Boveri |
| Cartouche | 30.95 | 1999 | Couach Yachts |
| Cartouche | 28.96 | 2010 | H2X Yachts & Ships |
| Caryali | 41.15 | 2012 | Alloy Yachts |
| Casa | 28.6 | 2012 | Sanlorenzo |
| Casa Blanca | 28.2 | 2000 | Hatteras Yachts |
| Casa Del Mare | 44.2 | 1992 | Darling Yachts |
| Casa Dell Arte II | 39 | 2009 | ADA Yacht Works |
| Casabella | 32.31 | 1979 | Codecasa S.p.A. |
| Casablanca | 51.07 | 2016 | Brodska Montaža d.o.o. |
| Casanova | 29.08 | 2002 | Sanlorenzo |
| Cascadia | 42 | 2006 | Challenge Marine Ltd. |
| Casi Cielo | 32.92 | 1998 | Westship Yachts |
| Casino Royale | 32.91 | 2004 | Sunseeker |
| Casino Royale | 72 | 2018 | Tankoa Yachts S.p.A. |
| Caspian King | 31.45 | 2006 | Astondoa S.A. (Astilleros) |
| Caspian Star | 60 | 2012 | Brodosplit Inc. |
| Cassidy Marie | 33.53 | 2021 | Riva S.p.A. |
| Cassiopeia | 37 | 1946 | Torre del Greco |
| Casta Diva | 29.7 | 2011 | Custom Line |
| Castle Zero One | 30.48 | 2010 | Monte Fino |
| Castlefinn | 44.68 | 2010 | Heesen Yachts |
| Castor | 47.52 | 1962 | Abeking & Rasmussen |
| Castores | 35.17 | 2017 | Azimut Yachts |
| Casual | 29.1 | 2009 | Dominator Yachts |
| Casual Water | 33.53 | 1987 | Feadship |
| Catalana | 27.71 | 2008 | Sunseeker |
| Catalina | 35.97 | 1986 | Broward Marine |
| Catalina | 44.75 | 2001 | Vitters Shipyard |
| Catching Moments | 45.72 | 2013 | Richmond Yachts |
| Cathie | 31.1 | 2013 | Cerri Cantieri Navali (CCN) |
| Cavallo | 42.9 | 2003 | Baltic Yachts |
| Caviar | 35.97 | 1955 | Vosper Thornycroft |
| Cavu | 30.48 | 1983 | Stephens Marine |
| Cazador | 35.05 | 2018 | Nordlund Boat Company. Inc. |
| CeFeA | 33.77 | 2020 | Solaris Yachts |
| Cecelia Mae | 35.6 | 1993 | Weist Industries |
| Cedar Island | 32.3 | 2002 | Lazzara Yachts |
| Cedar Sea II | 65.15 | 1986 | Feadship |
| Celandine | 29.73 | 1993 | Jongert Yachts |
