Jan
| Name | Jan |
| Type | Fishing vessel (sail) |
| GRT | 104 tons |
| Country |  Dutch |
| Built | 1915 |
| Builder | Uitenboogaard, Maassluis |
| Operator | M. van der Toorn den Dulk, Scheveningen |
| History | Per registration: SCH 170 |
U-boat attacks on Fishing vessel (sail) Jan
| Date | U-boat | Loss type | Position | Location | Route | Cargo | Casualties | |
| 1 | 27 Jul 1917 | UC 16 (Georg Reimarus) | Sunk | Stopped and sunk 19 miles WNW of Ymuiden | 0 |
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