Yenisei
| Name | Yenisei |
| Type | Minelayer |
| GRT | 3,600 tons |
| Country |  Russian |
| Built | 1906 |
| Builder | Baltic Works, St. Petersburg |
| Operator | Imperial Russian navy |
| History |
U-boat attacks on Minelayer Yenisei
| Date | U-boat | Loss type | Position | Location | Route | Cargo | Casualties | |
| 1 | 4 Jun 1915 | U 26 (Egewolf Frhr. von Berckheim) | Sunk | Baltic Sea | 59.10N, 23.43E | 0 |
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