Hertha
| Name | Hertha |
| Type | Auxiliary motor |
| GRT | 253 tons |
| Country |  Russian |
| Built | 1884 |
| Builder | Framnaes Mek. Verksted AS, Sandefjord |
| Operator | Russian government, Archangel |
| History | Possibly renamed Khariton Laptev per Russian sources. Wooden brigantine fitted with auxiliary steam engine. |
U-boat attacks on Auxiliary motor Hertha
| Date | U-boat | Loss type | Position | Location | Route | Cargo | Casualties | |
| 1 | 20 May 1918 | U 22 (Hinrich Hermann Hashagen) | Sunk | off Murmane coast |
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