Inverlyon
| Name | Inverlyon |
| Type | Fishing vessel (smack) |
| GRT | 59 tons |
| Country |  British |
| Built | 1903 |
| Builder | ?, Lowestoft |
| Operator | John Utting, Lowestoft |
| History | Fishing registration: LT 687. Inverlyon had previously been used as a Q-ship and sank UB 4 on August 15, 1915. |
U-boat attacks on Fishing vessel (smack) Inverlyon
| Date | U-boat | Loss type | Position | Location | Route | Cargo | Casualties | |
| 1 | 1 Feb 1917 | U 55 (Wilhelm Werner) | Sunk | Stopped and sunk by gunnery 15 miles NxW of Trevose Head | 50.47N, 05.05W | 0 |
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