Kalgan
| Name | Kalgan |
| Type | Steamer |
| GRT | 1,862 tons |
| Country |  British |
| Built | 1895 |
| Builder | Scott & Co., Greenock |
| Operator | China Navigation Co., Ltd., London |
| History |
U-boat attacks on Steamer Kalgan
| Date | U-boat | Loss type | Position | Location | Route | Cargo | Casualties | |
| 1 | 6 Mar 1918 | UB 53 (Robert Sprenger) | Sunk | 33 miles SW1/2W of Jaffa | in ballast | 1 |
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