Prudence
| Name | Prudence |
| Type | Fishing vessel (smack) |
| GRT | 25 tons |
| Country |  British |
| Built | 1907 |
| Builder | ?, Kingsbridge |
| Operator | Alfred H. Lanfear, Ramsgate |
| History |
U-boat attacks on Fishing vessel (smack) Prudence
| Date | U-boat | Loss type | Position | Location | Route | Cargo | Casualties | |
| 1 | 2 Jun 1917 | UB 23 (Hans Ewald Niemer) | Sunk | Stopped and sunk by gunnery 15 miles WSW of the Eddystone LH | 0 | |||
| Date given as the 3rd in British sources. | ||||||||
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