Mayo
| Name | Mayo |
| Type | Steamer |
| GRT | 1,880 tons |
| Country |  Spanish |
| Built | 1896 |
| Builder | C. S. Swan & Hunter, Ltd., Newcastle |
| Operator | Cia. Bilbaina de Nav. (Juan Urizar), Bilbao |
| History |
U-boat attacks on Steamer Mayo
| Date | U-boat | Loss type | Position | Location | Route | Cargo | Casualties | |
| 1 | 8 Sep 1916 | UB 23 (Ernst Voigt) | Sunk | off Ushant | 48° 53'N, 5° 28'W | Newport, Mon. - Bordeaux | coal | 0 |
Position of attack on Mayo
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