| Columbia C | 31.42 | 1998 | Overmarine Group SPA |
| Columbus | 35.05 | 1994 | Crescent Custom Yachts |
| Comanche | 30.48 | 2014 | Hodgdon Yachts |
| Comandante Pepedro | 30.91 | 2012 | Azimut Yachts |
| Come Prima | 50 | 2000 | Benetti SpA |
| Come Together | 60 | 2022 | Amels |
| Comfortably Numb | 60.33 | 2022 | CRN |
| Commodore | 33.9 | 1931 | Mathis Yacht Building Co |
| Como | 27.65 | 2014 | Cantiere delle Marche (CdM) |
| Compass Rose | 48.77 | 2011 | C & G Boat Works, Inc. |
| Compromise | 28.29 | 2000 | Hatteras Yachts |
| Concubine | 30.2 | 2002 | Hatteras Yachts |
| Condor A | 42.4 | 2009 | Tecnomar |
| Confessa | 40.8 | 2024 | Benetti SpA |
| Congvoyage | 36.58 | 2019 | Hargrave Custom Yachts |
| Connected | 37 | 2025 | Benetti SpA |
| Conquest of 1966 | 28.65 | 1966 | Astilleros Luzuriaga |
| Constance | 46.33 | 1986 | Feadship |
| Constance | 60 | 2006 | CRN |
| Constellation | 30.2 | 1996 | Horizon Yachts |
| Constellation | 39.62 | 2007 | Westport Yachts |
| Constellation | 80 | 1999 | Oceanco |
| Conte Stefani | 34.96 | 2006 | Horizon Yachts |
| Contessa | 33.1 | 2013 | Heysea Yachts |
| Contessa D'Azur | 35.5 | 1909 | Howard & Sons |
| Contigo | 31.09 | 2005 | LeClercq Marine |
| Contigo | 40.8 | 2024 | Benetti SpA |
| Continental Sloop Providence | 33.5 | 1978 | Don Gilkison |
| Contraband | 28.65 | 2018 | New England Boatworks |
| Contrarian Rose | 32.25 | 1993 | Broward Marine |
| Convict | 29.9 | 2020 | Riva S.p.A. |
| Cool | 36.92 | 2022 | Sanlorenzo |
| Cool | 30.12 | 2014 | Princess Yachts |
| Cool Change | 32.4 | 2024 | Ocean Alexander |
| Copper 3 | 28.15 | 2009 | Sunseeker |
| Cora Marie | 32.6 | 1929 | Hoffar-Beeching Shipyards |
| Coral | 31.27 | 2008 | |
| Coral | 28 | 2002 | Baglietto S.p.A. |
| Coral I | 33.53 | 1970 | Koser & Meyer |
| Coral II | 32.8 | 1963 | Feadship |
| Coral Ocean | 72.54 | 1994 | Lürssen Yachts |
| Coraysa | 35.2 | 2018 | Sunseeker |
| Cordoval III | 28.22 | 1978 | Benetti SpA |
| Core | 33.9 | 2016 | Mengi Yay Yachts |
| Corinthian | 39.05 | 1997 | Feadship |
| Cornelia | 34 | 2006 | RMK Marine |
| Corniche | 34.14 | 1942 | Greavette |
| Corona Del Mar | 36.58 | 1992 | Mefasa |
| Coronet | 40.54 | 1885 | C&R Poillon |
| Corroboree I | 33.53 | 1988 | Lloyds Ships |
