Moldavia
| Name | Moldavia |
| Type | Armed merchant cruiser |
| GRT | 9,500 tons |
| Country |  British |
| Built | 1903 |
| Builder | Caird & Co., Greenock |
| Operator | Royal Navy |
| History | Peace-time operator: Peninsular & Oriental Steam Navigation Co., Greenock |
U-boat attacks on Armed merchant cruiser Moldavia
| Date | U-boat | Loss type | Position | Location | Route | Cargo | Casualties | |
| 1 | 23 May 1918 | UB 57 (Johannes Lohs) | Sunk | Torpedoed off Beachy Head | 50° 24'N, 0° 26'W | Halifax- ? | troops and stores | 57 |
| Armed merchant cruiser operating as a troopship at the time she was sunk. The casualties were among American troops being embarked. Moldavia had sailed from Halifax on 11 May 1917 as ocean escort to convoy HC1. | ||||||||
Position of attack on Moldavia
ship sunk.
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