Tasmania
| Name | Tasmania |
| Type | Sailing vessel |
| GRT | 2,089 tons |
| Country |  Russian |
| Built | 1886 |
| Builder | W. H. Potter & Sons, Liverpool |
| Operator | Robert Mattsson, Mariehamn |
| History | Iron-hulled, ship-rigged sailing vessel. Built as Wayfarer. |
U-boat attacks on Sailing vessel Tasmania
| Date | U-boat | Loss type | Position | Location | Route | Cargo | Casualties | |
| 1 | 2 Dec 1917 | UC 17 (Ulrich Pilzecker) | Sunk | Stopped and scuttled SW of Ushant in the Bay of Biscay | New Orleans - Bordeaux | steel, wood, tobacco |
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