The Global War on Terrorism Service Medal is a military award of the United States Armed Forces which was created through Executive Order 13289 on 12 March 2003, by President George W. Bush. The medal recognizes those military service members who have supported operations to counter-terrorism in the War on Terror from 11 September 2001, to a date yet to be determined.

Awarded for support of operations to counter terrorism in a non-deployed status, whether stationed in the United States or overseas.