William And Betsy
| Name | William And Betsy |
| Type | Fishing vessel |
| GRT | 21 tons |
| Country |  British |
| Built | 1907 |
| Builder | unspecified builder in Filey |
| Operator | F. W. Mackrill, Fish Docks, Grimsby |
| History | Motor fishing vessel. PRN: GY 351. |
U-boat attacks on Fishing vessel William And Betsy
| Date | U-boat | Loss type | Position | Location | Route | Cargo | Casualties | |
| 1 | 28 Jun 1917 | UC 63 (Karsten von Heydebreck) | Sunk | Stopped and sunk 10 miles NE of Spurn Point | 0 |
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