Gryoza
| Name | Gryoza |
| Type | Sailing vessel |
| GRT | 119 tons |
| Country |  Russian |
| Built | |
| Builder | |
| Operator | |
| History | Three-masted sailing vessel. |
U-boat attacks on Sailing vessel Gryoza
| Date | U-boat | Loss type | Position | Location | Route | Cargo | Casualties | |
| 1 | 9 Apr 1916 | UB 7 (Wilhelm Werner) | Sunk | Black Sea |
If you can help us with any additional information on this vessel then please contact us.