La Bayonnaise
| Name | La Bayonnaise |
| Type | Steamer |
| GRT | 2,425 tons |
| Country |  French |
| Built | 1911 |
| Builder | Atel. & Chant. de France, Dunkerque |
| Operator | Cie. des Chargeurs Français (Plisson & Cie.), Bayonne |
| History |
U-boat attacks on Steamer La Bayonnaise
| Date | U-boat | Loss type | Position | Location | Route | Cargo | Casualties | |
| 1 | 8 Jun 1918 | UC 53 (Adolf Ehrensberger) | Sunk | 21 miles SE of Capo Spartivento, Calabria | 37.55N, 16.34E | Bizerta - ? |
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