Thomas Gass is a Swiss diplomat who currently serves as Ambassador of Switzerland to the Socialist Republic of Viet Nam.
He prepared his Baccalaureate in Mathematics and Physics at the Externat Notre Dame in Grenoble, France.
He was also an ex officio member of The UN Secretary-General's Independent Expert Advisory Group on a Data Revolution for Sustainable Development (IEAG) which produced the report "A World That Counts: Mobilising The Data Revolution for Sustainable Development".
[4] From 2009 to 2013, Gass served as Head of the Mission of Switzerland to Nepal (Ambassador and Country Director of the Swiss Agency for Development and Cooperation), where he led the establishment of the Embassy of Switzerland in Nepal, and ensured the delivery of a development cooperation programme of up to 33 million dollars a year.
Earlier in his career, Gass served as Policy and Programme Officer for the Swiss Agency for Development and Cooperation, as Deputy Resident Representative of the United Nations Development Programme (UNDP) in Guyana, and as Regional Director for Europe with the International Plant Genetic Resources Institute in Rome.