Boy Walter
| Name | Boy Walter |
| Type | Fishing vessel (smack) |
| GRT | 43 tons |
| Country |  British |
| Built | 1909 |
| Builder | ?, Great Yarmouth |
| Operator | Lucy A. Beck (Edward Beck), Lowestoft |
| History | Fishing registration: LT 502 |
U-boat attacks on Fishing vessel (smack) Boy Walter
| Date | U-boat | Loss type | Position | Location | Route | Cargo | Casualties | |
| 1 | 24 Mar 1917 | UC 17 (Ralph Wenninger) | Sunk | Stopped and sunk 15 miles SE of the Eddystone LH | 0 |
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