Tainui
| Name | Tainui |
| Type | Steamer |
| GRT | 9,965 tons |
| Country |  British |
| Built | 1908 |
| Builder | Workman, Clark & Co., Ltd., Belfast |
| Operator | Shaw, Savill & Albion Co., Ltd., Southampton |
| History | Cargo vessel with passenger accomidations. |
U-boat attacks on Steamer Tainui
| Date | U-boat | Loss type | Position | Location | Route | Cargo | Casualties | |
| 1 | 8 Apr 1918 | U 82 (Hans Adam) | Damaged | 60 miles SW of the Scillies - damaged by torpedo, beached at Falmouth but salvaged and returned to service. | Cardiff - Havre | general | 0 |
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