The Ambassadors' Roundtable to date has hosted the following Foreign Chiefs of Mission (see below). Senior State Department officials have also addressed the Roundtable.

H.E. Ichiro Fujisaki, Ambassador of Japan
H.E. Zhang Yesui, Ambassador of the People's Republic of China
H.E. Sir Nigel Sheinwald, Ambassador of the United Kingdom
H.E. Sergey I. Kislyak, Ambassador of the Russian Federation
H.E. Aziz Mekouar, Ambassador of Morocco
H.E. Husain Haqqani, Ambassador of Pakistan
H.E. Michael Oren, Ambassador of Israel
H.E. Arturo Sarukhan, Ambassador of Mexico
H.E. François Delattre, Ambassador of France
H.E. Namik Tan, Ambassador of Turkey
H.E. Yousef Al Otaiba, Ambassador of the United Arab Emirates
H.E. Gary Doer, Ambassador of Canada
H.E. Y.J. Choi, Ambassador of the Republic of Korea
H.E. Mauro Vieira, Ambassador of Brazil
H.E. Claudio Bisogniero, Ambassador of Italy
H.E. Sir Peter Westmacott, Ambassador of the United Kingdom
H.E. Nirupama Rao, Ambassador of India
H.E. Mohamed Tawfik, Ambassador of Egypt
H.E. Ramón Gil-Casares, Ambassador of Spain
H.E. Ritva Koukku-Ronde, Ambassador of Finland
H.E. Kenichiro Sasae, Ambassador of Japan
H.E. Eduardo Medina Mora, Ambassador of Mexico
H.E. Gerard Araud, Ambassador of France
H.E. Antoine Chedid, Ambassador of Lebanon
The Honorable Thomas A. Shannon, Counselor of the Department of State
H.E. Dr. Réka Szemerkényi, Ambassador of Hungary
H.E. Turki Al-Faisal, Ambassador of Saudi Arabia
H.E. Dr. Hamdullah Mohib, Ambassador of Afghanistan
H.E. Juan Carlos Pinzón, Ambassador of Colombia
H.E. Luiz Alberto Figueiredo Machado, Ambassador of Brazil
H.E. Martin Dahinden, Ambassador of Switzerland
H.E. David O'Sullivan, Ambassador to the European Union
The Honorable Michele J. Sison, Deputy U.S. Permanent Representative to the United Nations
Helga Margarete Barth, Minister and Director of Political Affairs, Embassy of Germany
H.E. Ashok Kumar Mirpuri, Ambassador of Singapore
Craig Mokhiber, Director and Deputy to the Assistant Secretary-General for Human Rights, New York Office of the High Commissioner for Human Rights
H.E. Hynek Kmonicek, Ambassador of the Czech Republic
H.E. Dr. László Szabó, Ambassador of Hungary
H.E. Cho Yoon-je, Ambassador of South Korea
H.E. Haris Lalacos, Ambassador of Greece
H.E. Karin Olofsdotter, Ambassador of Sweden
H.E. Wafa Bughaighis, Ambassador of Libya
H.E. Martha Barcena Coqui, Ambassador of Mexico