Umba
| Name | Umba |
| Type | Steamer |
| GRT | 2,042 tons |
| Country |  British |
| Built | 1903 |
| Builder | Act. Ges. “Neptun”, Rostock |
| Operator | The Shipping Controller (Ellerman's Wilson Line, Ltd.), London |
| History |
U-boat attacks on Steamer Umba
| Date | U-boat | Loss type | Position | Location | Route | Cargo | Casualties | |
| 1 | 30 Apr 1918 | UB 57 (Johannes Lohs) | Sunk | 1 miles S of the Royal Sovereign LV | Dunkerque - Barry Roads | in ballast | 20 |
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