Amsteldjik
| Name | Amsteldjik |
| Type | Trawler |
| GRT | 186 tons |
| Country |  Dutch |
| Built | 1916 |
| Builder | Bonn & Mees, Rotterdam. |
| Operator | Visscherij Maatschappij De Roode Ster, Maassluis |
| History | Registration: MA 122. |
U-boat attacks on Trawler Amsteldjik
| Date | U-boat | Loss type | Position | Location | Route | Cargo | Casualties | |
| 1 | 26 Apr 1917 | UC 63 (Karsten von Heydebreck) | Sunk | Stopped and sunk near the Haaks LV | 52.56N, 04.10E | 0 | ||
| Crew picked up by the Voorbode (VL 103). | ||||||||
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