Rotorua
| Name | Rotorua |
| Type | Steamer |
| GRT | 11,140 tons (one of the largest ships hit) |
| Country |  British |
| Built | 1910 |
| Builder | Wm. Denny & Bros., Dumbarton |
| Operator | New Zealand Shipping Co., Ltd., Plymouth |
| History |
U-boat attacks on Steamer Rotorua
| Date | U-boat | Loss type | Position | Location | Route | Cargo | Casualties | |
| 1 | 22 Mar 1917 | UC 17 (Ralph Wenninger) | Sunk | 24 miles E Start Point | 50° 17'N, 3° 07'W | Wellington - London | general cargo | 1 |
Position of attack on Rotorua
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