TSS Slieve Bloom was a twin screw steamer cargo vessel operated by the London and North Western Railway from 1908 to 1918.

[1] She was completed by Vickers, Sons & Maxim Ltd of Barrow-in-Furness for the London and North Western Railway in 1908.

She sank near South Stack lighthouse after a collision with the USS Stockton on 31 March 1918, with the loss of all of her cargo, 370 cattle, 12 horses, general goods and railway rolling stock.

The passengers evacuated to lifeboats and were later picked up by a sister ship and taken to Liverpool.

There was one life lost, of a passenger whose cabin was close to the point of impact.