Ships hit by U-664
See the profile page for U-664
| Date | U-boat | Commander | Name of ship | Tons | Nat. | Convoy | ||
| 16 Dec, 1942 | U-664 | Adolf Graef |  | Emile Francqui | 5.859 |  | be | ON-153 |
| 21 Feb, 1943 | U-664 | Adolf Graef | H.H. Rogers | 8.807 |  | pa | ONS-167 | |
| 21 Feb, 1943 | U-664 | Adolf Graef | Rosario | 4.659 |  | am | ONS-167 | |
| 19.325 | ||||||||
| 3 ships sunk (19.325 tons).
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