Sirra
| Name | Sirra |
| Type | Steamer |
| GRT | 3,203 tons |
| Country |  Italian |
| Built | 1897 |
| Builder | Russell & Co., Port Glasgow |
| Operator | Flli. Lavarello & Censini, Genoa |
| History |
U-boat attacks on Steamer Sirra
| Date | U-boat | Loss type | Position | Location | Route | Cargo | Casualties | |
| 1 | 16 Jul 1916 | U 39 (Walter Forstmann) | Sunk | near Cherchell | 37° 39'N, 3° 20'E | Naples - New York | 0 |
Position of attack on Sirra
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