Laertes
| Name | Laertes |
| Type | Steamer |
| GRT | 4,541 tons |
| Country |  British |
| Built | 1904 |
| Builder | Hawthorn, Leslie & Co., Ltd., Newcastle |
| Operator | Ocean Steam Ship Co., Ltd. (A. Holt & Co.), Liverpool |
| History |
U-boat attacks on Steamer Laertes
| Date | U-boat | Loss type | Position | Location | Route | Cargo | Casualties | |
| 1 | 1 Aug 1917 | UB 31 (Thomas Bieber) | Sunk | 1.25 miles SSW of Prawle Point | Southampton - Montreal | in ballast | 14 |
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