Bontnewydd
| Name | Bontnewydd |
| Type | Steamer |
| GRT | 3,296 tons |
| Country |  British |
| Built | 1897 |
| Builder | J. Readhead & Sons, South Shields |
| Operator | Bont Shipping Co., Ltd. (David Owen & & Co.), London (Cardiff) |
| History |
U-boat attacks on Steamer Bontnewydd
| Date | U-boat | Loss type | Position | Location | Route | Cargo | Casualties | |
| 1 | 5 Oct 1917 | k.u.k. U28 (Zdenko Hudecek) | Sunk | 60 miles NNE of Marsa Susa | 33.53N, 22.19E | Marseille - Karachi | in ballast | 3 |
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