| Name | Build year | Nationality | Bilde | Loss during WW2 |
|---|---|---|---|---|
| D/S Robert Henri | 1944 | USA | ||
| D/S Robert H. Harrison | 1942 | USA | ||
| D/S Robert Howe | 1943 | USA | ||
| D/S Robert J. Collier | 1943 | USA | ||
| D/S Robert Morris | 1942 | USA | ||
| M/S Robert Mærsk | 1936 | Denmark | ||
| D/S Robert Treat | 1943 | USA | ||
| D/S Robert Trimble | 1943 | USA | ||
| D/S Robert Watchorn | 1944 | USA | ||
| T/S Robin Goodfellow | 1920 | USA | Torpedoed, 1944-7-25 | |
| T/S Robin Hood | 1919 | USA | ||
| T/S Robin Locksley | 1941 | USA | ||
| D/S Rocha | 1933 | Panama | ||
| T/T Rock Landing | 1945 | USA | ||
| D/S Rocky Mountains Park | 1943 | Canada | ||
| M/S Rodi | 1928 | Great Britain | ||
| M/S Rodi Malta | 1928 | Malta | ||
| D/S Rogaland | 1929 | Norway | ||
| D/S Roger Williams | 1942 | USA | ||
| M/T Rogn | 1941 | Norway | ||
| D/S Rokos Vergottis | 1919 | Greece | Sunk by mine, 1941-12-23 | |
| D/S Rolf | 1887 | Norway | ||
| D/S Rolf Jarl | 1920 | Norway | ||
| D/T Rolfsborg | 1915 | Finland | ||
| D/S Rollaug | 1902 | Norway |