Niki
| Name | Niki |
| Type | Steamer |
| GRT | 511 tons |
| Country |  Greek |
| Built | 1888 |
| Builder | D. J. Dunlop & Co., Port Glasgow |
| Operator | Hellenic Co. of Maritime Enterprises, Piraeus |
| History |
U-boat attacks on Steamer Niki
| Date | U-boat | Loss type | Position | Location | Route | Cargo | Casualties | |
| 1 | 9 Oct 1917 | UB 48 (Wolfgang Steinbauer) | Sunk | about 30 miles north of Cape Matapan | 0 |
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