St. Clair
| Name | St. Clair |
| Type | Steamer |
| GRT | 621 tons |
| Country |  British |
| Built | 1868 |
| Builder | Randolph Elder & Co., Govan |
| Operator | Aberdeen Leith Clyde & Tay Shipping Co. |
| History |
U-boat attacks on Steamer St. Clair
| Date | U-boat | Loss type | Position | Location | Route | Cargo | Casualties | |
| 1 | 19 Jan 1918 | U 101 (Carl-Siegfried Ritter von Georg) | Damaged | Shelled 12 miles SSW of Fair Isle | Leith - Lerwick | general cargo | 2 |
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