Ivrig
| Name | Ivrig |
| Type | Sailing vessel |
| GRT | 1,197 tons |
| Country |  Norwegian |
| Built | 1891 |
| Builder | Atel. & Chant. de la Loire, Nantes |
| Operator | Bulls Seilskibsrederi A/S (Gustav B. Bull), Kristiania |
| History | Steel-hulled bark. Built as Marguerite Elise. |
U-boat attacks on Sailing vessel Ivrig
| Date | U-boat | Loss type | Position | Location | Route | Cargo | Casualties | |
| 1 | 1 May 1917 | UC 65 (Otto Steinbrinck) | Sunk | Stopped and sunk by gunnery 10 miles SW of Portpatrick | Dublin – Newport News, VA | in ballast | 0 |
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