Mars
| Name | Mars |
| Type | Sailing vessel |
| GRT | 251 tons |
| Country |  Russian |
| Built | 1907 |
| Builder | Saul, Kabli |
| Operator | Gebr. Grant, Pernau |
| History |
U-boat attacks on Sailing vessel Mars
| Date | U-boat | Loss type | Position | Location | Route | Cargo | Casualties | |
| 1 | 28 May 1915 | U 16 (Leo Hillebrand) | Sunk | 40 miles E of the Shetlands | Halmstad - Ayr | pit props |
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