Lauwerzee
| Name | Lauwerzee |
| Type | Trawler |
| GRT | 47 tons |
| Country |  Dutch |
| Built | 1908 |
| Builder | |
| Operator | N.V. De Merwede (A.P. van den Boom), Scheveningen. |
| History | A tug used as a trawler. Registration: SCH 165 |
U-boat attacks on Trawler Lauwerzee
| Date | U-boat | Loss type | Position | Location | Route | Cargo | Casualties | |
| 1 | 29 Jun 1917 | UC 21 (Werner von Zerboni di Sposetti) | Sunk | Stopped and sunk by gunnery off Rotterdam | 7 | |||
| Crew not recovered from the lifeboat. | ||||||||
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