Avanguardia
| Name | Avanguardia |
| Type | Steamer |
| GRT | 2,703 tons |
| Country |  Italian |
| Built | 1889 |
| Builder | J. L. Thompson & Sons, Sunderland |
| Operator | C. Devoto fu G.B., Genoa |
| History |
U-boat attacks on Steamer Avanguardia
| Date | U-boat | Loss type | Position | Location | Route | Cargo | Casualties | |
| 1 | 30 Mar 1917 | UC 69 (Erwin Waßner) | Sunk | Captured and scuttled 15 miles from Contis les Bains LH (Bayonne area)
| Bougie - Cardiff | ore | 0 |
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