Theodora
| Name | Theodora |
| Type | Steamer |
| GRT | 2,899 tons |
| Country |  Greek |
| Built | 1894 |
| Builder | C. S. Swan & Hunter, Newcastle |
| Operator | C. Pateras & M. A. Prois, Piraeus |
| History |
U-boat attacks on Steamer Theodora
| Date | U-boat | Loss type | Position | Location | Route | Cargo | Casualties | |
| 1 | 4 Sep 1917 | UB 49 (Hans von Mellenthin) | Sunk | near Correbedo, Spain | 42.32N, 09.25W | Cagliari - Nantes | 0 |
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