The Royal Ulster Constabulary Service Medal was a medal created to honour the service of members of the Royal Ulster Constabulary (RUC) and the RUC Reserve.

The medal is circular and made of silver coloured metal.

The obverse bears the effigy of Elizabeth II wearing the St Edward's Crown, surrounded by the royal titles.

The reverse depicts the badge of the Royal Ulster Constabulary above the words FOR SERVICE.

In October 2001, the ribbon edges were changed to Garter blue to reflect the award of the George Cross to the Royal Ulster Constabulary.