K.507
| Name | K.507 |
| Type | Sailing vessel |
| GRT | 40 tons |
| Country |  Greek |
| Built | |
| Builder | |
| Operator | |
| History |
U-boat attacks on Sailing vessel K.507
| Date | U-boat | Loss type | Position | Location | Route | Cargo | Casualties | |
| 1 | 18 Jul 1917 | UC 38 (Alfred Klatt) | Sunk | Aegean Sea |
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