L 1
| Name | L 1 |
| Type | Barge |
| GRT | 130 tons |
| Country |  British |
| Built | 1915 |
| Builder | J. Blumer & Co., Sunderland |
| Operator | Royal Navy |
| History | Water lighter, built as X 182. |
U-boat attacks on Barge L 1
| Date | U-boat | Loss type | Position | Location | Route | Cargo | Casualties | |
| 1 | 22 Jul 1918 | UB 51 (Ernst Krafft) | Sunk | 32.37N, 28.39E | 1000 tons of benzole | 0 |
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