HSwMS Tre Kronor was a cruiser built for the Royal Swedish Navy during the Second World War.

The engines were rated at 100,000 shaft horsepower (75,000 kW) which gave the ships a speed of 33 knots (61 km/h; 38 mph).

Eventually only two of the cruisers were built, and the third cruiser-squadron of the Coastal Fleet would be led by the modernised AA-cruiser HSwMS Gotland.

The turrets used on HSwMS Tre Kronor were built by Bofors and were originally ordered by the Dutch Navy to be fitted on the two De Zeven Provinciën-class cruisers, but after the German occupation of the Netherlands the Swedish government was afraid they would be claimed by the Germans so they were confiscated.

Tre Kronor was launched 16 December 1944, commissioned on 25 October 1947, and served until 1 January 1964.