Sagres
| Name | Sagres |
| Type | Steamer |
| GRT | 2,986 tons |
| Country |  Portuguese |
| Built | 1911 |
| Builder | Akt. Ges. “Neptun”, Rostock |
| Operator | Transportes Maritimos do Estado, Lisbon |
| History |
U-boat attacks on Steamer Sagres
| Date | U-boat | Loss type | Position | Location | Route | Cargo | Casualties | |
| 1 | 16 Apr 1917 | UC 37 (Otto Launburg) | Sunk | Mined off Cap Blanc | Marseille - Salonica | troops and war supplies | 133 | |
| Location matches UC 37’s minefield of March 27, 1917. | ||||||||
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