Anna
| Name | Anna |
| Type | Sailing vessel |
| GRT | 610 tons |
| Country |  Danish |
| Built | 1877 |
| Builder | James Laing, Sunderland |
| Operator | R. K. Bager, Marstal |
| History |
U-boat attacks on Sailing vessel Anna
| Date | U-boat | Loss type | Position | Location | Route | Cargo | Casualties | |
| 1 | 13 May 1917 | UC 17 (Ralph Wenninger) | Sunk | 30 miles NE of Ile de Batz | 49° 12'N, 4° 26'W | Montego Bay - Havre | logwood | 0 |
Position of attack on Anna
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