Gloucester Castle
| Name | Gloucester Castle |
| Type | Hospital ship |
| GRT | 7,999 tons |
| Country |  British |
| Built | 1911 |
| Builder | Fairfield SB. & Eng. Co., Ltd., Glasgow |
| Operator | The Union-Castle Mail SS. Co., Ltd., London |
| History |
U-boat attacks on Hospital ship Gloucester Castle
| Date | U-boat | Loss type | Position | Location | Route | Cargo | Casualties | |
| 1 | 31 Mar 1917 | UB 32 (Max Viebeg) | Damaged | Isle of Wight area | 3 |
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