Hilary
| Name | Hilary |
| Type | Armed merchant cruiser |
| GRT | 6,329 tons |
| Country |  British |
| Built | 1908 |
| Builder | Caledon SB. & Eng. Co., Ltd., Dundee |
| Operator | Royal Navy |
| History | Peace-time operator: Booth SS. Co., Ltd., Liverpool |
U-boat attacks on Armed merchant cruiser Hilary
| Date | U-boat | Loss type | Position | Location | Route | Cargo | Casualties | |
| 1 | 25 May 1917 | U 88 (Walther Schwieger) | Sunk | W of the Shetlands | 60° 33'N, 3° 00'W | 4 |
Position of attack on Hilary
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