Sunniside
| Name | Sunniside |
| Type | Steamer |
| GRT | 447 tons |
| Country |  British |
| Built | 1905 |
| Builder | Goole SB. & Repg. Co., Ltd., Goole |
| Operator | Tower Steam Shipping Co., Ltd. (Woods, Tylor & Brown), London |
| History |
U-boat attacks on Steamer Sunniside
| Date | U-boat | Loss type | Position | Location | Route | Cargo | Casualties | |
| 1 | 9 Nov 1916 | UC 4 (Hans Howaldt) | Sunk | Mined 4 miles ENE of Southwold | Hull - Rotterdam | general cargo | 4 |
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