HSwMS Sverige was a Sverige-class coastal defence ship (Pansarskepp) commissioned by Sweden during the last year of the First World War.

Seaworthiness, armament, armour and speed, all had to be improved according to the multiple new technologies that had arrived with the naval arms race that followed the launch of the British HMS Dreadnought.

The postponement of funding for HSwMS Sverige by Prime Minister Karl Staaff had a significant impact on the "Pansarbåtinsamlingen" fundraising campaign.

The campaign, which had aimed to raise 12 million Kronor for the ship, was put on hold as a result of the political uncertainty.

[1] After the outbreak of World War I, two more ships were ordered which had a slightly changed appearance, the two bearing the names of the King and Queen of Sweden.

The engines were rated at a total of 20,000 shaft horsepower (15,000 kW) that was designed to give her a speed of 22.5 knots (41.7 km/h; 25.9 mph).

Targeting data for the guns was collected by 3-metre (9 ft 10 in) rangefinders in the conning tower and in the main-gun turrets.

Underwater protection was limited to a single anti-torpedo bulkhead on each broadside and subdividing the hull below the deck into thirteen watertight compartments.