The Styrsö class is a series of mine countermeasures vessels in service with the Swedish Navy built from glass fibre.

In 2004 HSwMS Spårö and HSwMS Sturkö were modernised, pulling out some of their capability for traditional mine clearance in favour of extended human dive support, the modified vessels are occasionally called Spårö class.

There is also an underwater vehicle type Uven and a towed array sonar on board.

The ships have a completely integrated command and navigation system with computer communication and projection of charts in a 3D environment.

In 2004 HSwMS Spårö and HSwMS Sturkö were modernised, pulling out some of their capability for traditional mine clearance in favour of extended human dive support, the modified vessels are occasionally called Spårö class.