Märta
| Name | Märta |
| Type | Steamer |
| GRT | 493 tons |
| Country |  Swedish |
| Built | 1879 |
| Builder | J. Laing, Sunderland |
| Operator | Rederi A/B Ester (J. E. Osterlund), Norrköping |
| History |
U-boat attacks on Steamer Märta
| Date | U-boat | Loss type | Position | Location | Route | Cargo | Casualties | |
| 1 | 19 May 1917 | UC 58 (Karl Vesper) | prize | off the Finnish coast | Stockholm - Raumo | general cargo | 0 | |
| Taken as prize to Libau and retained | ||||||||
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