Rene Montrieux
| Name | Rene Montrieux |
| Type | Sailing vessel (schooner) |
| GRT | 234 tons |
| Country |  French |
| Built | 1900 |
| Builder | L. Tranchemer, La Richardais |
| Operator | Société des Ardoisières d’Angers, Nantes |
| History | Master Le Layec |
U-boat attacks on Sailing vessel (schooner) Rene Montrieux
| Date | U-boat | Loss type | Position | Location | Route | Cargo | Casualties | |
| 1 | 1 Dec 1916 | UC 19 (Alfred Nitzsche) | Sunk | Stopped and scuttled off Ushant | 48.37N, 05.01W | 0 | ||
| Sinking credited to UC 19 following the description of the submarine made by the Master of the vessel. | ||||||||
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