Galgorm Castle
| Name | Galgorm Castle |
| Type | Sailing vessel |
| GRT | 1,596 tons |
| Country |  British |
| Built | 1892 |
| Builder | Workman, Clark & Co., Ltd., Belfast |
| Operator | J. Stewart & Co., Belfast |
| History | Steel-hulled bark. |
U-boat attacks on Sailing vessel Galgorm Castle
| Date | U-boat | Loss type | Position | Location | Route | Cargo | Casualties | |
| 1 | 27 Feb 1917 | U 49 (Richard Hartmann) | Sunk | Stopped and sunk 90 miles W of Fastnet | Buenos Aires - Queenstown | 11 | ||
| Time 4:45 pm | ||||||||
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