Glenesk
| Name | Glenesk |
| Type | Sailing vessel |
| GRT | 1,369 tons |
| Country |  Norwegian |
| Built | 1890 |
| Builder | Russell & Co., Port Glasgow |
| Operator | A/S Glenesk (Einar Noer, Sandefjord), Bergen |
| History | Steel-hulled bark. |
U-boat attacks on Sailing vessel Glenesk
| Date | U-boat | Loss type | Position | Location | Route | Cargo | Casualties | |
| 1 | 25 Apr 1917 | U 81 (Raimund Weisbach) | Sunk | Stopped and scuttled 75 miles WNW of Eagle Island | Greenock – New York | in ballast | 0 |
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