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 | 43.26N, 01.41W | Santander - Sunderland | iron ore | 4 |
| Wreck at N 43° 25.916, W 1° 40.750 | ||||||||
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