Acacia
| Name | Acacia |
| Type | Fishing vessel (sail) |
| GRT | 9 tons |
| Country |  French |
| Built | |
| Builder | |
| Operator | Grandinot |
| History |
U-boat attacks on Fishing vessel (sail) Acacia
| Date | U-boat | Loss type | Position | Location | Route | Cargo | Casualties | |
| 1 | 1 May 1917 | UC 72 (Ernst Voigt) | Sunk | 7 miles off the Chassiron LH | Fishing | 3 |
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