Ali Jehangir Siddiqui is a Pakistani entrepreneur and diplomat who is the 28 and current Pakistani Ambassador to the US. He succeeded Aizaz Chaudhry and commenced on his duties in May 2018. Previously, he served as Special Assistant to the PM Shahid Khaqan Abbasi. Prior to undertaking diplomatic duties, he served as the Chairman at the JS Bank from 2006 to 2017. He also held board memberships of several organizations, such as AirBlue, Lucky Cement, Acumen Fund, Pak American Fertilizers Ltd., and Al-Abbas Sugar Mills among many others. He has also partaken several philanthropic projects as the Honorary CEO of the Mahvash and Jahangir Siddiqui Foundation (MJSF) and is an avid youth education advocate.

Ali was born to Jahangir Siddiqui, the Pakistani business magnate and founder of the JS group, and Mahvash Siddiqui, an Educationist. He was educated at Karachi Grammar School in 1995 and later at Tonbridge School, UK. He graduated with a B.A in Economics from the Cornell University, New York, USA. He later became the director at the Crosby Capital, which is a private equity management firm based in Hong Kong. During the early 2000s, Siddiqui joined the family business and grew his entrepreneurial experiences by working closely with potential investors in various niches. He built competent partnerships with several national and international organizations, such as AirBlue, Arabian Gulf Steel, Jura Energy, RAK Ghani Steel, and Star marine Services. After his appointment as the special assistant to the PM in 2017, he attended several international sessions and broadened his comprehension of diplomacy and international political affairs. He also participated in the Organization of Islamic Cooperation (OIC) summit, Commonwealth Heads of Government Meetings (CHOGM), and UN and World Economic Forum meetings. However, he was previously held accountable for defalcation of several investments by the National Accountability Bureau (NAB).