Arethuse
| Name | Arethuse |
| Type | Fishing vessel |
| GRT | 40 tons |
| Country |  French |
| Built | |
| Builder | |
| Operator | |
| History |
U-boat attacks on Fishing vessel Arethuse
| Date | U-boat | Loss type | Position | Location | Route | Cargo | Casualties | |
| 1 | 12 Mar 1917 | UC 21 (Reinhold Saltzwedel) | Sunk | off the Gironde entrance |
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