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U.S. Department of State

Diplomacy in Action

Justin Siberell
Principal Deputy Coordinator for Counterterrorism
Bureau of Counterterrorism
Term of Appointment: 07/09/2012 to present

Justin Siberell is the Principal Deputy Coordinator for Counterterrorism in the Bureau of Counterterrorism (CT) at the U.S. Department of State. He joined the State Department Foreign Service in March 1993 and joined the CT Bureau in July 2012. He is a career member of the Senior Foreign Service with rank of Counselor.

Before joining the CT Bureau, Mr. Siberell was Principal Officer in Dubai, United Arab Emirates. Other overseas assignments include service at U.S. Embassies and Consulates in Baghdad, Iraq; Amman, Jordan; Alexandria, Egypt; and Panama City, Panama.

In Washington, Mr. Siberell completed tours in the State Department Operations Center and Executive Secretariat; as Desk Officer for Iran in the Bureau of Near Eastern Affairs; and as Executive Assistant to the National Security Advisor at the White House.

Mr. Siberell was raised in California, and attended the University of California at Berkeley where he received a Bachelor of Arts Degree in History.

Mr. Siberell is a 2002 graduate of the State Department’s Arabic Language Field School in Tunis, Tunisia. Mr. Siberell speaks Arabic and Spanish.


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