- C. Columbus (1997)
- Caledonian Star (1966)
- Canberra (1961)
- Cape Cod Light (2004)
- Cape May Light (2001)
- Calypso (1955)
- Calypso I (1955)
- Caribe (1948)
- Caribe (1953)
- Caribe I (1953)
- Carnival Celebration (2022)
- Carnival Conquest (2002)
- Carnival Ecstasy (1991)
- Carnival Elation (1998)
- Carnival Fantasy (1990)
- Carnival Fascination (1994)
- Carnival Freedom (2007)
- Carnival Glory (2003)
- Carnival Holiday (1985)
- Carnival Imagination (1995)
- Carnival Inspiration (1996)
- Carnival Jubilee (2023)
- Carnival Luminosa (2009)
- Carnival Mardi Gras (2020)
- Carnival Paradise (1998)
- Carnival Sensation (1993)
- Carnival Spirit (2001)
- Carnivale (1956)
- Caronia (1973)
- Casino Royale (1974)
- Celebration (1987)
- Celebrity Ascent (2023)
- Celebrity Century (1995)
- Celebrity Constellation (2002)
- Celebrity Eclipse (2010)
- Celebrity Flora (2019)
- Celebrity Galaxy (1996)
- Celebrity Mercury (1997)
- Celebrity Millenium (2000)
- Celebrity Silhouette (2011)
- Celebrity Summit (2001)
- Celestyal Crystal (1980)
- Celestyal Discovery (2003)
- Celestyal Experience (1993)
- Celestyal Journey (1994)
- Celestyal Nefeli (1992)
- Celestyal Odyssey (2002)
- Celestyal Olympia (1982)
- Century (1995)
- Century Harmony (1994)
- Charming (1998)
- China Star (1992)
- Clipper Adventurer (1975)
- Clipper Discoverer (2004)
- Clipper Voyager (2001)
- Chinese Taishan (2000)
- Clio (1998)
- Clipper Pacific (1970)
- Clipper Pearl (1970)
- Clipper Odyssey (1989)
- Club 1 (1975)
- Club Med 1 (1989)
- Club Sea (1975)
- Coastal Queen 2 (2004)
- Columbus (1989)
- Columbus 2 (1998)
- Columbus C (1953)
- Columbus Caravelle (1990)
- Commodore Hotel (1958)
- Constellation (2002)
- Continental World (1969)
- Coral Princess (2002)
- Corinthian II (1991)
- Costa Allegra (1969)
- Costa Atlantica (2000)
- Costa Azzurra (1969)
- Costa Celebration (1987)
- Costa Classica (1991)
- Costa Concordia (2006)
- Costa Deliziosa (2010)
- Costa Diadema (2014)
- Costa Fascinosa (2012)
- Costa Fortuna (2003)
- Costa Luminosa (2009)
- Costa Magica (2004)
- Costa Mediterranea (2003)
- Costa neoClassica (1991)
- Costa neoRiviera (1999)
- Costa neoRomantica (1993)
- Costa Pacifica (2009)
- Costa Playa (1967)
- Costa Romantica (1993)
- Costa Smeralda (2019)
- Costa Toscana (2021)
- Costa Tropicale (1981)
- Costa Victoria (1996)
- Costa Voyager (2000)
- Cristal (1980)
- Crown (1973)
- Crown Dynasty (1993)
- Crown Jewel (1992)
- Crown Majesty (1993)
- Crown Monarch (1990)
- Crown Odyssey (1988)
- Crown Princess (1990)
- Crown Princess (2006)
- Cruise One (1990)
- Crystal Endeavor (2021)
- Crystal Harmony (1990)
- Crystal Serenity (2003)
- Crystal Symphony (1995)
- CT Neptune (1976)
- Cunard Conquest (1977)
- Cunard Countess (1976)
- Cunard Princess (1977)