Ayr
| Name | Ayr |
| Type | Steamer |
| GRT | 3,050 tons |
| Country |  British |
| Built | 1894 |
| Builder | J. L. Thompson & Sons, Ltd., Sunderland |
| Operator | Mercantile Steamship Co., Ltd. o (E. Hain & Son), London |
| History |
U-boat attacks on Steamer Ayr
| Date | U-boat | Loss type | Position | Location | Route | Cargo | Casualties | |
| 1 | 8 Mar 1918 | UC 27 (Otto Gerke) | Sunk | 31 miles N1/2W of Linosa Island | 36.23N, 13.45E | Alexandria - Bizerta | lead, cotton & cotton seed | 0 |
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