Diplomatic Courier 100 Years Banner

A diplomatic courier is a U.S. government official who is trained and credentialed by the Secretary of State to accompany classified materials across international borders. The Diplomatic Security Service has approximately 100 diplomatic couriers who ensure secure delivery of classified and sensitive materials between U.S. consulates and embassies and the State Department.

Watch to learn more about the Diplomatic Courier Service.

Historical Timeline of U.S. Diplomatic Couriers

A Brief Diplomatic Courier History

Careers in the Diplomatic Courier Service

U.S. Department of State

Welcome to the new State.gov

Our new design makes it easier to find and learn about the State Department’s programs and services—from passports and visas to learning how U.S. diplomacy benefits the American people.