Primrose
| Name | Primrose |
| Type | Drifter |
| GRT | 62 tons |
| Country |  British |
| Built | 1906 |
| Builder | John Chambers & Co. Ltd., Lowestoft |
| Operator | Thomas E. Thirtle, Lowestoft & others |
| History | Wooden-hulled. PRN: LT1016 |
U-boat attacks on Drifter Primrose
| Date | U-boat | Loss type | Position | Location | Route | Cargo | Casualties | |
| 1 | 18 May 1917 | UB 20 (Hermann Glimpf) | Sunk | Stopped and sunk by gunnery 22 miles WxS1/2S of Bishop Rock | 0 |
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