Polanna
| Name | Polanna |
| Type | Steamer |
| GRT | 2,345 tons |
| Country |  British |
| Built | 1893 |
| Builder | Blohm & Voss, Hamburg |
| Operator | Clyde Shipping Co., Ltd., Glasgow (crown nominees) |
| History |
U-boat attacks on Steamer Polanna
| Date | U-boat | Loss type | Position | Location | Route | Cargo | Casualties | |
| 1 | 6 Aug 1917 | UC 40 (Gustav Deuerlich) | Sunk | 3 miles E of Whitby | Tyne - Dunkerque | coal | 2 |
If you can help us with any additional information on this vessel then please contact us.