Dalkeith
| Name | Dalkeith |
| Type | Navy Tug |
| GRT | 748 tons |
| Country |  British |
| Built | 1889 |
| Builder | Wm. Denny & Bros., Dumbarton |
| Operator | Royal Navy |
| History |
U-boat attacks on Navy Tug Dalkeith
| Date | U-boat | Loss type | Position | Location | Route | Cargo | Casualties | |
| 1 | 29 Apr 1918 | UB 48 (Wolfgang Steinbauer) | Sunk | at San Pietro Island, Sardinia (off Carloforte) while engaged in salvage of KINGSTONIAN (which see)
| 9 |
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