Mercian
| Name | Mercian |
| Type | Steamer |
| GRT | 6,305 tons |
| Country |  British |
| Built | 1908 |
| Builder | Harland & Wolff, Ltd., Belfast |
| Operator | Wilsons & Furness-Leyland Line, Ltd., Liverpool |
| History | Cargo vessel with passenger accomidations. Titled transferred at some point in 1915 to Fred. Leyland & Co., Ltd., Liverpool. |
U-boat attacks on Steamer Mercian
| Date | U-boat | Loss type | Position | Location | Route | Cargo | Casualties | |
| 1 | 4 Nov 1915 | U 38 (Max Valentiner) | Damaged | Damaged by shelling between Gibraltar and Alboran | Southampton - ? | 0 |
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