Johanne
| Name | Johanne |
| Type | Sailing vessel |
| GRT | 234 tons |
| Country |  Danish |
| Built | 1884 |
| Builder | P. Treemeeguard, Svendburg |
| Operator | “Panis”, Svendborg |
| History | Wooden three masted schooer. |
U-boat attacks on Sailing vessel Johanne
| Date | U-boat | Loss type | Position | Location | Route | Cargo | Casualties | |
| 1 | 28 Aug 1918 | U 34 (Johannes Klasing) | Sunk | Stoped and scuttled off Carthagena | 37° 13'N, 0° 55'W | Gothenburg - Genoa | wood pulp | 0 |
Position of attack on Johanne
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