HSwMS Orion (A201) is a signals intelligence gathering vessel of the Swedish Navy.

[3] In 1998 Orion received a false bomb threat, which was widely covered in the Swedish newspapers.

The ship is operated by Swedish Navy officers and sailors, as well as personnel from the National Defence Radio Establishment (FRA).

On 22 April 2010, the government of Sweden approved the acquisition of a new ship to replace HSwMS Orion since it no longer meets current sea safety rules.

[6] Construction started on 1 March 2018 at the Polish shipyard Nauta that was selected by Sweden to build the new ship.