Operational Service Medal

Operational Service Medal may refer to:


 * Operational Service Medal (Canada), a campaign medal established in 2010
 * Operational Service Medal (United Kingdom), the overall name given to a group of campaign medals awarded to the British Armed Forces:
 * Operational Service Medal for Afghanistan
 * Operational Service Medal for the Democratic Republic of Congo
 * Operational Service Medal for Sierra Leone
 * Operational Service Medal Iraq and Syria
 * Australian Operational Service Medal, a campaign medal established in 2012
 * New Zealand Operational Service Medal, a campaign medal established in 2002
 * International Operational Service Medal, a military decoration awarded since 2016 by the Government of Ireland