Thomas A. Shannon, Jr.

United States  |  Co-Chair

Former Undersecretary of State for Political Affairs

+1-202-822-9002 ˙ ˙

Tom Shannon spent over 30 years in the foreign service, most recently as under-secretary of state for political affairs in the US Department of State from 2016-2018. He previously served as counselor and senior advisor to the secretary following a four-year term as US ambassador to Brazil. Shannon served as assistant secretary of state for Western Hemisphere affairs from 2005-2009 and as special assistant to the president and senior director for Western Hemisphere affairs at the National Security Council from 2003 to 2005, among other senior roles across the region.


Shannon joined the Dialogue as a Member in 2018. He currently serves as Co-Chair of the Dialogue’s Board of Directors.

Analysis See all


Global Conversations: American Foreign Policy in an Age of Uncertainty

Ambassador Thomas A. Shannon, co-chair of the Inter-American Dialogue’s board of directors, shares his perspective on current foreign policy challenges and opportunities, the Trump administration’s understanding of the world, and its approach to promoting US interests in this event hosted by Global Minnesota.

Member in the News: Tom Shannon

Venerated U.S. Ambassador Thomas Shannon retired in February 2018 after an almost 35-year career at the State Department.

Events See all