Saint Pierre I
| Name | Saint Pierre I |
| Type | Navy Trawler |
| GRT | 303 tons |
| Country |  French |
| Built | 1906 |
| Builder | Atel. & Chant. de France, Dunkerque |
| Operator | French Navy |
| History | Peace-time operator: E. & J. Delpierre fils, Boulogne |
U-boat attacks on Navy Trawler Saint Pierre I
| Date | U-boat | Loss type | Position | Location | Route | Cargo | Casualties | |
| 1 | 23 Sep 1915 | UB 17 (Ralph Wenninger) | Sunk | Torpedoed near the Dyck LV. | 51.02N, 02.06E | 17 | ||
| One survivor. | ||||||||
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