St. Sunniva
| Name | St. Sunniva |
| Type | Steamer
|
| GRT | 1,140 tons |
| Country |  Norwegian |
| Built | 1912
|
| Builder | Laxevaags Maskin & Jernskibsbyg., Bergen
|
| Operator | A/S St. Sunniva (J. Lund & Co.), Bergen
|
| History |
|
U-boat attacks on Steamer St. Sunniva
| Date | U-boat | Loss type | Position | Location | Route | Cargo | Casualties |
| 1 | 2 Jun 1917 | UC 72 (Ernst Voigt) | Sunk | Mined off St. Jean de Luz
| 43° 26'N, 1° 41'W
| Santander - Sunderland
| iron ore
| 4
|
| Wreck at N 43° 25.916, W 1° 40.750
|
Position of attack on St. Sunniva
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