Sigrid
| Name | Sigrid |
| Type | Steamer |
| GRT | 2,194 tons |
| Country |  Russian |
| Built | 1898 |
| Builder | Blyth SB. Co., Ltd., Blyth |
| Operator | Russisch Baltische Dampfs. Ges. (Helmsing & Grimm), Riga |
| History |
U-boat attacks on Steamer Sigrid
| Date | U-boat | Loss type | Position | Location | Route | Cargo | Casualties | |
| 1 | 19 Feb 1917 | U 49 (Richard Hartmann) | Sunk | about 30 miles E of Unst Island, Shetlands
| 60.50N, 00.10E | Romanoff - ? | 0 |
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