Lennok
| Name | Lennok |
| Type | Steamer |
| GRT | 1,142 tons |
| Country |  Russian |
| Built | 1890 |
| Builder | J. Priestman & Co., Sunderland |
| Operator | Joh. Linde, Pernau / Reval |
| History |
U-boat attacks on Steamer Lennok
| Date | U-boat | Loss type | Position | Location | Route | Cargo | Casualties | |
| 1 | 13 Jul 1915 | U 20 (Walther Schwieger) | Sunk | 35 miles NNE of Muckle Flugga (NW Shetlands) | Archangelsk - London | 0 |
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