| | UDE | 1960 | 1988 |
| | UDO | 1941 | 1968 |
| | UDO | 1978 | 1983 |
| | UELZEN | 1974 | 1982 |
| | UGLAND TRAILER | 1978 | 1982 |
| | UGO MARU | 1880 | 1897 |
| | UHENFELS | 1907 | 1907 |
| | UHL | 1896 | 1924 |
| | UHURU | 1974 | 1978 |
| | UJINA MARU | 1886 | 1895 |
| | UJUNG LERO | 1967 | 1990 |
| | ULIDIA | 1903 | 1903 |
| | ULINA | 1931 | 1963 |
| | ULISSE | 1943 | 1969 |
| | ULJAS | 1949 | 1968 |
| | ULLA | 1955 | 1955 |
| | ULLA | 1966 | 1970 |
| | ULLA | 1991 | 1991 |
| | ULLA DANIELSEN | 1966 | 1966 |
| | ULLA DANIELSEN | 1979 | 1995 |
| | ULMO | 1961 | 1997 |
| | ULULA | 1948 | 1948 |
| | ULVA T 248 | 1942 | 1942 |
| | ULYSSES | 1873 | 1874 |
| | ULYSSES | 1918 | 1918 |
| | ULYSSES | 1962 | 1962 |
| | UMAG CAYENNE | 1985 | 1992 |
| | UMAG SAINT MALO | 1977 | 1993 |