Avristan
| Name | Avristan |
| Type | Steamer |
| GRT | 3,818 tons |
| Country |  British |
| Built | 1901 |
| Builder | Bartram & Sons, Sunderland |
| Operator | Strick Line, Ltd. (F. C. Strick & Co., Ltd.), Swansea |
| History |
U-boat attacks on Steamer Avristan
| Date | U-boat | Loss type | Position | Location | Route | Cargo | Casualties | |
| 1 | 7 Dec 1916 | UC 21 (Reinhold Saltzwedel) | Sunk | 14 miles SxW1/2W of Ushant | 47.13N, 05.12W | Portland, ME - London | wheat | 1 |
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