Mergellina
| Name | Mergellina |
| Type | Passenger steamer |
| GRT | 354 tons |
| Country |  Italian |
| Built | 1912 |
| Builder | Cant. Nav. Riuniti, Ancona |
| Operator | Cia. Napoletana di Nav., Naples |
| History |
U-boat attacks on Passenger steamer Mergellina
| Date | U-boat | Loss type | Position | Location | Route | Cargo | Casualties | |
| 1 | 4 May 1918 | UC 20 (Heinrich Kukat) | Damaged | Torpedoed off Cape Spartivento |
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