Alacrity
| Name | Alacrity |
| Type | steamer |
| GRT | 1,080 tons |
| Country |  British |
| Built | 1883 |
| Builder | Castle Steel & Iron Works Co., Milford Haven |
| Operator | Harries Bros. & Co., Belfast (Swansea) |
| History |
U-boat attacks on steamer Alacrity
| Date | U-boat | Loss type | Position | Location | Route | Cargo | Casualties | |
| 1 | 31 Mar 1916 | UB 13 (Arthur Metz) | Sunk | Torpedoed off Southwold. | Le Havre - Seaham Harbour | in ballast | 14 | |
| Vessel sunk with all hands. Fate reassessed in 2009 based upon British and German documents; the ship UB 13 is credited with sinking in this attack was previously the Norwegian steamer Memento, which actually was mined. | ||||||||
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