| | CTE CINTA | 1984 | 1992 |
| | CTS TRADER | 1961 | 1996 |
| | CUANZA | 1943 | 1950 |
| | CUAO | 1954 | 1978 |
| | CUCCIOLO | 1917 | 1948 |
| | CUM DEO | 1963 | 1987 |
| | CUMULUS | 1944 | 1949 |
| | CUMULUS | 1958 | 1958 |
| | CUMULUS | 1963 | 1963 |
| | CUMULUS I | 1958 | 1976 |
| | CURACAO | 1899 | 1899 |
| | CURACAO | 1930 | 1940 |
| | CURACAO | 1949 | 1949 |
| | CURLEW | 1892 | 1892 |
| | CURTIS MATHES | 1955 | 1971 |
| | CURUG MAS | 1981 | 1996 |
| | CUTRAL CO | 1960 | 1960 |
| | CUYAMAPA | 1914 | 1924 |
| | CYCLADES | 1980 | 1991 |
| | CYCLADIKI DOXA | 1944 | 1962 |
| | CYCLON | 1960 | 1960 |
| | CYCLOOP | 1855 | 1860 |
| | CYCLOOP | 1860 | 1863 |
| | CYCLOPS | 1880 | 1879 |
| | CYGNET | 1917 | 1939 |
| | CYGNUS | 1921 | 1921 |
| | CYGNUS | 1961 | 1997 |
| | CYGNUS | 2000 | 2001 |