Propontis
| Name | Propontis |
| Type | Sailing vessel |
| GRT | 700 tons |
| Country |  Greek |
| Built | |
| Builder | |
| Operator | |
| History | Bark |
U-boat attacks on Sailing vessel Propontis
| Date | U-boat | Loss type | Position | Location | Route | Cargo | Casualties | |
| 1 | 24 Oct 1916 | U 73 (Gustav Sieß) | Sunk | Stopped and scuttled in the Ionian Sea | 38° 12'N, 18° 54'E | Saint Louis sur Rhone - Port Said | cement |
Position of attack on Propontis
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