Tholma
| Name | Tholma |
| Type | Steamer |
| GRT | 1,896 tons |
| Country |  Norwegian |
| Built | 1904 |
| Builder | Helsingørs Jernskibsvft. & Maskinbyg., Helsingør |
| Operator | A/S Borchs Rederi (A. F. Borch & Sønner), Drammen |
| History |
U-boat attacks on Steamer Tholma
| Date | U-boat | Loss type | Position | Location | Route | Cargo | Casualties | |
| 1 | 8 Jan 1917 | U 48 (Berndt Buß) | Sunk | 90 miles NW of Cape Finisterre | 43.23N, 11.01W | Cardiff - Genoa | coal | 0 |
| Captured on January 8, used as depot ship and sunk on 10th. | ||||||||
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