Hyacinthe Yvonne
| Name | Hyacinthe Yvonne |
| Type | Sailing vessel |
| GRT | 43 tons |
| Country |  French |
| Built | |
| Builder | |
| Operator | |
| History |
U-boat attacks on Sailing vessel Hyacinthe Yvonne
| Date | U-boat | Loss type | Position | Location | Route | Cargo | Casualties | |
| 1 | 18 Mar 1917 | UC 70 (Werner Fürbringer) | Sunk | off La Pallice | ||||
| armed patrol vessel or Q-ship | ||||||||
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