St. Dunstan
| Name | St. Dunstan |
| Type | Dredger |
| GRT | 730 tons |
| Country |  British |
| Built | 1894 |
| Builder | Lobnitz & Co., Renfrew |
| Operator | |
| History |
U-boat attacks on Dredger St. Dunstan
| Date | U-boat | Loss type | Position | Location | Route | Cargo | Casualties | |
| 1 | 23 Sep 1917 | UC 21 (Werner von Zerboni di Sposetti) | Sunk | Mined 12 NWxW of Portland Bill | 2 |
If you can help us with any additional information on this vessel then please contact us.