Ambassador Dian Triansyah Djani (born 9 July 1962)[1] is an Indonesian diplomat currently serving as the Special Advisor to the Foreign Minister for Priority Programs at the Ministry of Foreign Affairs of the Republic of Indonesia.[2] He was Permanent Representative of Indonesia to the United Nations (UN) in New York.He has served in various capacities, especially during Indonesia's reign as G20 President and ASEAN Chairman (2021 - 2023). After returning from New York as the Indonesian Ambassador to the UN, he as well concurrently serve as the Co-Sherpa for the Indonesian G20 Presidency. He was the Chairman of the United Nations General Assembly Second Committee at the 71st United Nations General Assembly, from September 2016 to September 2017.[3] He was also appointed to be Vice President of the 72nd UN General Assembly in 2017–2018,[3] and 74th UN General Assembly in 2019–2020. In May 2019 and August 2020, he took the seat of Presidency of the United Nations Security Council.[4]