Hirondelle
| Name | Hirondelle |
| Type | Sailing vessel |
| GRT | 183 tons |
| Country |  French |
| Built | 1912 |
| Builder | Bonne-Lesueur, Paimpol |
| Operator | Pierre Pouhaer, Paimpol |
| History | Wooden schooner. |
U-boat attacks on Sailing vessel Hirondelle
| Date | U-boat | Loss type | Position | Location | Route | Cargo | Casualties | |
| 1 | 2 Jul 1915 | U 39 (Walter Forstmann) | Sunk | Stopped and sunk 40 miles N of Ushant | 49° 10'N, 5° 46'W | La Rochelle - Swansea | pitwood |
Position of attack on Hirondelle
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