Risholm
| Name | Risholm |
| Type | Steamer |
| GRT | 2,550 tons |
| Country |  Norwegian |
| Built | 1916 |
| Builder | Fredriksstad Mek. Verks., Fredrikstad |
| Operator | Skibs A/S Grimstad (Markussen, Jørgensen & Co.), Grimstad |
| History |
U-boat attacks on Steamer Risholm
| Date | U-boat | Loss type | Position | Location | Route | Cargo | Casualties | |
| 1 | 4 Oct 1916 | UC 26 (Matthias Graf von Schmettow) | Sunk | 12 miles WSW of Ushant | Blyth - Bordeaux | coal | 0 |
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