Tosho Maru
| Name | Tosho Maru |
| Type | Steamer |
| GRT | 3,038 tons |
| Country |  Japanese |
| Built | 1894 |
| Builder | Ropner & Son, Stockton |
| Operator | S. Tanaka, Kobe |
| History |
U-boat attacks on Steamer Tosho Maru
| Date | U-boat | Loss type | Position | Location | Route | Cargo | Casualties | |
| 1 | 29 Jan 1918 | UC 54 (Heinrich XXXVII Prinz Reuß zu Köstritz) | Sunk | La Galite Channel, Tunisia | Cagliari - Malta | 0 |
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