Gioconda
| Name | Gioconda |
| Type | Steamer |
| GRT | 3,701 tons |
| Country |  Russian |
| Built | 1902 |
| Builder | R. Craggs & Sons, Ltd., Middlesbrough |
| Operator | Imperial Russian Navy |
| History | Transport 22 in Russian naval service |
U-boat attacks on Steamer Gioconda
| Date | U-boat | Loss type | Position | Location | Route | Cargo | Casualties | |
| 1 | 2 Sep 1916 | UB 45 (Karl Palis) | Sunk | 45 miles off Trebizond (Trapezund) — towed into Trebizond, beached, and used as a landing stage. | ||||
| Not repaired by 1919 so apparently effectively a total loss. | ||||||||
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