Olearia
| Name | Olearia |
| Type | Trawler |
| GRT | 209 tons |
| Country |  British |
| Built | 1899 |
| Builder | Cochrane & Cooper, Selby |
| Operator | North Eastern Steam Fishing Co. Ltd., Grimsby |
| History |
U-boat attacks on Trawler Olearia
| Date | U-boat | Loss type | Position | Location | Route | Cargo | Casualties | |
| 1 | 23 May 1917 | UC 33 (Martin Schelle) | Sunk | Stopped and sunk 65 miles WSW of N the end of Sudero | 0 |
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