Glendoon
| Name | Glendoon |
| Type | Sailing vessel |
| GRT | 1,918 tons |
| Country |  Norwegian |
| Built | 1894 |
| Builder | A. Rodger & Co., Port Glasgow |
| Operator | A/S Bruusgaard (Johan Bruusgaard), Drammen |
| History | Steel-hulled, ship-rigged sailing vessel. |
U-boat attacks on Sailing vessel Glendoon
| Date | U-boat | Loss type | Position | Location | Route | Cargo | Casualties | |
| 1 | 16 Apr 1916 | U 69 (Ernst Wilhelms) | Sunk | Stopped and sunk 60 miles WSW of Bishop Rock | 49.28N, 07.40W | Iquique – Calais | nitrate | 0 |
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