Gioffredo Mameli
| Name | Gioffredo Mameli |
| Type | Steamer |
| GRT | 4,124 tons |
| Country |  Italian |
| Built | 1912 |
| Builder | W. Doxford & Sons, Ltd., Sunderland |
| Operator | Ferrovie dello Stato, Genoa |
| History |
U-boat attacks on Steamer Gioffredo Mameli
| Date | U-boat | Loss type | Position | Location | Route | Cargo | Casualties | |
| 1 | 20 Sep 1917 | UB 50 (Franz Becker) | Sunk | 45 miles SW of Cape Spartel | 36.05N, 06.15W | Italy - U.K. | ore |
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