Aby
| Name | Aby |
| Type | Fishing vessel |
| GRT | 15 tons |
| Country |  British |
| Built | 1916 |
| Builder | Walter Reekie, St. Monance, Fife |
| Operator | Samuel Chapman (The Younger), Grimsby |
| History | Motor fishing vessel. PRN: GY974 |
U-boat attacks on Fishing vessel Aby
| Date | U-boat | Loss type | Position | Location | Route | Cargo | Casualties | |
| 1 | 7 Jul 1918 | UB 40 (Hans Joachim Emsmann) | Sunk | Stopped and scuttled 25 miles E3/4N of Spurn Point | 0 |
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