Clan Mackenzie
| Name | Clan Mackenzie |
| Type | Steamer |
| GRT | 6,544 tons |
| Country |  British |
| Built | 1917 |
| Builder | Northumberland SB. Co., Ltd., Newcastle |
| Operator | The Clan Line Steamers, Ltd. (Cayzer, Irvine & Co., Ltd.), Glasgow |
| History |
U-boat attacks on Steamer Clan Mackenzie
| Date | U-boat | Loss type | Position | Location | Route | Cargo | Casualties | |
| 1 | 5 Mar 1918 | UB 30 (Wilhelm Rhein) | Damaged | Torpedoed S of the Isle of Wight | London - Plymouth | chalk | 6 |
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