Dirk
| Name | Dirk |
| Type | Fishing vessel (sail) |
| GRT | 81 tons |
| Country |  Dutch |
| Built | 1901 |
| Builder | Scheepswerf De Jong, Vlaardingen |
| Operator | Wed. J. Van der Toorn, Scheveningen |
| History | Port registration: SCH 382 |
U-boat attacks on Fishing vessel (sail) Dirk
| Date | U-boat | Loss type | Position | Location | Route | Cargo | Casualties | |
| 1 | 27 Jul 1917 | UC 16 (Georg Reimarus) | Sunk | Stopped and sunk 19 miles off Zandvoort | 0 |
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