Operational Service Medal

Operational Service Medal may refer to:


 * Operational Service Medal (Canada), a campaign medal established in 2010
 * Operational Service Medal for Afghanistan, a campaign medal awarded since 2003 by the Ministry of Defence of the United Kingdom
 * Operational Service Medal for the Democratic Republic of Congo, a British armed forces campaign medal established in 2005
 * Operational Service Medal for Sierra Leone, a campaign medal awarded since 2000 by the Ministry of Defence of the United Kingdom
 * 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