Leontine
| Name | Leontine |
| Type | Sailing vessel |
| GRT | 201 tons |
| Country |  French |
| Built | |
| Builder | |
| Operator | Cotton, St. Nazaire |
| History | Wooden brigantine previously known as Clio. The vessel is first listed in the 1882 Mercantile Navy List with the where and when built fields listed as ”no information received.” First registered in Androssan, so possibly built there.
Previously owned by A. Kohler & Co., St. Brieuc. |
U-boat attacks on Sailing vessel Leontine
| Date | U-boat | Loss type | Position | Location | Route | Cargo | Casualties | |
| 1 | 25 Mar 1917 | UC 36 (Gustav Buch) | Sunk | Shelled and scuttled 5 miles S of Ile de Groix | 6 |
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