Aconcagua
| Name | Aconcagua |
| Type | Sailing vessel |
| GRT | 1,313 tons |
| Country |  French |
| Built | 1880 |
| Builder | R. Duncan & Co., Port Glsgow |
| Operator | Ant. Dom. Bordes et fils, Dunkerque |
| History | Iron-hulled ship-rigged sailing vessel. Built as Nereus. |
U-boat attacks on Sailing vessel Aconcagua
| Date | U-boat | Loss type | Position | Location | Route | Cargo | Casualties | |
| 1 | 2 Jan 1917 | U 70 (Otto Wünsche) | Sunk | Sunk by gunfire in the Bay of Biscay
| 46.11N, 07.26W | Antofagasta, Chile - La Pallice | nitrate |
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