Louisiane
| Name | Louisiane |
| Type | Passenger steamer |
| GRT | 5,109 tons |
| Country |  French |
| Built | 1905 |
| Builder | Atel. & Chant. de France, Dunkerque |
| Operator | Cie. Générale Transatlantique, Havre |
| History |
U-boat attacks on Passenger steamer Louisiane
| Date | U-boat | Loss type | Position | Location | Route | Cargo | Casualties | |
| 1 | 9 Mar 1916 | UB 18 (Otto Steinbrinck) | Sunk | Torpedoed 3 miles from Cap de La Hève | New Orleans via Newport News - Havre | cotton | 1 |
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