Berthilde
| Name | Berthilde |
| Type | Rescue vessel |
| GRT | 672 tons |
| Country |  French |
| Built | 1886 |
| Builder | Rostocker A.G. für Schiffs u. Maschinenbau, Rostock |
| Operator | French government |
| History |
U-boat attacks on Rescue vessel Berthilde
| Date | U-boat | Loss type | Position | Location | Route | Cargo | Casualties | |
| 1 | 12 Jul 1917 | k.u.k. U4 (Rudolf Singule) | Sunk | Torpedoed 20 miles NE of Cap Stilo | 38° 35'N, 16° 50'E | 26 |
Position of attack on Berthilde
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