Ptarmigan
| Name | Ptarmigan |
| Type | Steamer |
| GRT | 784 tons |
| Country |  British |
| Built | 1891 |
| Builder | Gourlay Bros. & Co., Dundee |
| Operator | General Steam Navigation Co., Ltd., London |
| History |
U-boat attacks on Steamer Ptarmigan
| Date | U-boat | Loss type | Position | Location | Route | Cargo | Casualties | |
| 1 | 15 Apr 1915 | UB 5 (Wilhelm Smiths) | Sunk | 6 miles WxN North Hinder LV | Rotterdam - London | general cargo | 8 |
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