Tolosa
| Name | Tolosa |
| Type | Steamer |
| GRT | 1,833 tons |
| Country |  Norwegian |
| Built | 1915 |
| Builder | Fredriksstad Mek. Verks., Fredrikstad |
| Operator | Dampsk. I/S Garonne (Fearnley & Eger), Christiania |
| History |
U-boat attacks on Steamer Tolosa
| Date | U-boat | Loss type | Position | Location | Route | Cargo | Casualties | |
| 1 | 13 Sep 1916 | UB 18 (Otto Steinbrinck) | Sunk | 30 miles NNE of Ile de Batz, Brittany | Bilbao - Middlesbrough | iron ore | 0 |
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