HMS Antrim was a Devonshire-class armoured cruiser built for the Royal Navy in the first decade of the 20th century.

Upon mobilisation in mid-1914 her squadron was assigned to the Grand Fleet and spent much of its time patrolling the northern exits from the North Sea.

Antrim was sent to Arkhangelsk in mid-1916 and then to the North America and West Indies Station for convoy escort duties.

She was powered by two 4-cylinder triple-expansion steam engines, each driving one shaft, which produced a total of 21,000 indicated horsepower (16,000 kW) and gave a maximum speed of 22 knots (41 km/h; 25 mph).

[1] Antrim, named to commemorate the Irish county,[8] was laid down by John Brown & Company at their Clydeside shipyard on 27 August 1902 and launched on 8 October 1903.

She was completed on 23 June 1905[1] and was initially assigned to the 1st Cruiser Squadron of the Channel Fleet together with most of her sister ships.

It spent much of its time with the Grand Fleet reinforcing the patrols near the Shetland and Faeroe Islands and the Norwegian coast[12] where Antrim captured a German merchantman on 6 August.

The ship was sent to Archangelsk in June 1916 and was then transferred for convoy escort duties to the North America and West Indies Station.