Nirefs
| Name | Nirefs |
| Type | |
| GRT | 4.080 tons |
| Country |  Greek |
| Built | |
| Builder | |
| Operator | |
| History |
U-boat attacks on Nirefs
| Date | U-boat | Loss type | Position | Location | Route | Cargo | Casualties | |
| 1 | 14 Jun, 1917 | U () | Sunk | Mined 1,5 miles N La Vieille LH, nr Ushant | 0 |
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