| CC-Summer | 95 | 2019 | Lürssen Yachts |
| CD Two | 42.98 | 1993 | Cantieri Navali Nicolini Srl |
| CID | 34.65 | 2017 | Feadship |
| CIO | 34.72 | 2007 | Mengi Yay Yachts |
| CLX96/01 | 29.5 | 2022 | CL Yachts |
| CQS | 33.7 | 2004 | Concept Yachts |
| CV-9 | 39.93 | 1995 | Delta Marine |
| Caballero | 29.9 | 2009 | Cantiere Navale De Cesari A. S.N.C. |
| Cabernet | 45.72 | 2006 | Sensation Yachts |
| Cabo | 43.3 | 2023 | Pershing S.p.a. |
| Cabochon | 28.04 | 2004 | Ta Chiao Chou Yacht Building Co Ltd |
| Cacique | 46 | 2004 | CRN |
| Cacouna | 36.2 | 1932 | Camper & Nicholsons Shipyard |
| Cada Uno | 35.36 | 2008 | Canados |
| Caffeine | 35.24 | 2023 | Pershing S.p.a. |
| Caia S | 36.5 | 2015 | Sanlorenzo |
| Caipirinha | 60 | 2009 | Lürssen Yachts |
| Cairdeas | 34.14 | 1943 | Fellow & Stewart |
| Calabuig | 30.54 | 1979 | Camper & Nicholsons Shipyard |
| Caledonia | 29.87 | 1973 | Bayaco |
| Calex | 67 | 2022 | Benetti SpA |
| Calisto | 41.5 | 1944 | Astoria Marine |
| Calliope | 43.28 | 2007 | Richmond Yachts |
| Calliope | 32.5 | 2018 | Numarine |
| Calliope | 45 | 2012 | RMK Marine |
| Callisto | 35.97 | 1972 | Halter Marine |
| Callisto | 42.5 | 2022 | Feadship |
| Calypso | 61.5 | 2003 | Amels |
| Calypso | 38.4 | 1978 | Feadship |
| Calypso | 38.38 | 2020 | Benetti SpA |
| Calypso | 30.78 | 1971 | Feadship |
| Calypso I | 36 | 2019 | Mulder Shipyard |
| Camara C | 32 | 1961 | Yarrow & Co |
| Camarik | 34.14 | 2005 | Custom Line |
| Camarina Royale | 34.95 | 2001 | Benetti SpA |
| Cambria | 41.15 | 1928 | William Fife & Sons |
| Camellia I | 34 | 1962 | Austin & Pickersgill Ltd. |
| Camelot | 30.48 | 2008 | Hargrave Custom Yachts |
| Camena | 29.8 | 1992 | Lowland Yachts B.V. |
| Camila | 49.95 | 2025 | Bilgin Yachts |
| Camila Del Mar | 30.48 | 1996 | Azimut Yachts |
| Camille | 36.6 | 2007 | Broward Marine |
| Camy Ed | 31.4 | 2006 | Azimut Yachts |
| Can't Remember | 34.2 | 2004 | Tecnomar |
| Canados Oceanic 143 | 43.45 | 2023 | Canados |
| Canali | 33.88 | 2008 | Canados |
| Candida | 39.65 | 1929 | Camper & Nicholsons Shipyard |
| Candy World | 35.97 | 2001 | Swiftships Inc. |
| Cangarda | 42.06 | 1901 | Pusey & Jones |
| Canim | 29.26 | 1930 | Lake Union Drydocks |
