Leonora
| Name | Leonora |
| Type | Fishing vessel (smack) |
| GRT | 26 tons |
| Country |  British |
| Built | 1897 |
| Builder | ?, Rye |
| Operator | Charles R. Gander (William R. Caseley), Ramsgate |
| History | Wooden ketch. Tonnage is net, not gross. |
U-boat attacks on Fishing vessel (smack) Leonora
| Date | U-boat | Loss type | Position | Location | Route | Cargo | Casualties | |
| 1 | 21 Feb 1918 | UB 33 (Fritz Gregor) | Sunk | Stopped and sunk 11 miles E of Hopes Nose | 50.27N, 03.14W | 0 |
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