Valborg
| Name | Valborg |
| Type | Sailing vessel |
| GRT | 207 tons |
| Country |  Danish |
| Built | 1902 |
| Builder | N.P. Petersen, Thurø |
| Operator | A/S C.V. Petersen, Svendborg |
| History | Three-masted wooden schooner. Possibly built in 1901. |
U-boat attacks on Sailing vessel Valborg
| Date | U-boat | Loss type | Position | Location | Route | Cargo | Casualties | |
| 1 | 26 Oct 1916 | U 34 (Claus Rücker) | Sunk | W of Algiers | 37.31N, 04.50E | Chatham, New Brunswick- Tunis | planks | 0 |
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