Thomas Kwesi Quartey born December 17, 1950, is a Ghanaian diplomat who has served as Deputy Chairperson of African Union Commission from January 30, 2017 to February 2021.

He was Deputy Minister of Foreign Affairs and Regional Integration of Ghana from 2013 to 2016.

Born in Ghana, Kwesi is a University of Ghana alumnus and a professional lawyer.

He was secretary to the President of Ghana in 2015, he served as Ghana's Permanent Representative to the United Nations in 2012.

[1][2] He worked in Ghana's High Commissions and Embassies abroad and also served as Ghana's Deputy Head of Mission in London.