Orne
| Name | Orne |
| Type | Steamer |
| GRT | 928 tons |
| Country |  French |
| Built | 1903 |
| Builder | De la Brosse & Fouché, Nantes |
| Operator | Paul Duval, Havre |
| History |
U-boat attacks on Steamer Orne
| Date | U-boat | Loss type | Position | Location | Route | Cargo | Casualties | |
| 1 | 21 Dec 1917 | UB 54 (Egon von Werner) | Sunk | 25 miles W of Portland Bill | Penarth - Trouville | coal | 0 |
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