Operational Service Medal (United Kingdom)

OSM: Common obverse
OSM: Common reverse

The Operational Service Medal (OSM) is the overall name given to a group of campaign medals awarded by the British armed forces. Introduced in 1999 to replace the General Service Medal, the OSM features a common design for the medal itself, with each one differentiated by a distinct ribbon.

As of June 2025, the Operational Service Medal has been awarded for four separate campaigns.