Demerara
| Name | Demerara |
| Type | Passenger steamer |
| GRT | 11,484 tons (one of the largest ships hit) |
| Country |  British |
| Built | 1912 |
| Builder | Harland & Wolff, Ltd., Belfast |
| Operator | Royal Mail Steam Packet Co., Belfast |
| History |
U-boat attacks on Passenger steamer Demerara
| Date | U-boat | Loss type | Position | Location | Route | Cargo | Casualties | |
| 1 | 1 Jul 1917 | U 84 (Walter Roehr) | Damaged | Torpedoed 6 miles W of Sables d’Olonne | Liverpool - Buenos Aires | general cargo | 1 | |
| Beached Ile de Ré, refloated. | ||||||||
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