C. Thorén
| Name | C. Thorén |
| Type | Sailing vessel |
| GRT | 269 tons |
| Country |  Swedish |
| Built | 1892 |
| Builder | C. Thorén, Oscarshamm |
| Operator | Chr. Hviid-Nielsen |
| History | Wooden barkentine. |
U-boat attacks on Sailing vessel C. Thorén
| Date | U-boat | Loss type | Position | Location | Route | Cargo | Casualties | |
| 1 | 5 Jun 1917 | U 71 (Walter Gude) | Sunk | Stopped and sunk in the North sea | 61° 13'N, 2° 43'E | Ronneby - Reykjavik | timber | 0 |
Position of attack on C. Thorén
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