Ali Jehangir Siddiqui (Sindhi :علي جھانگير صديقي; born 5 December 1976) is a Pakistani diplomat and entrepreneur.

[11] At the age of 15 he launched a technology business[12] called Advance Micro Research which integrated computer network systems for corporations.

Siddiqui is on the Board of Governors of IPRI, a non-partisan think-tank on international relations, lawfare, strategic studies, governance, public policy, and economic security in Pakistan.

[35] Prior to his appointment as the Pakistani Ambassador to the United States, the National Accountability Bureau (NAB) claimed that Siddiqui was involved in matters relating to three companies: Azgard, Agritech, and Monte Bello which caused losses to investors and shareholders.

[35][44] In October 2018, the Pakistani Foreign Minister Shah Mehmood Qureshi announced a change in Pakistan's ambassadorial appointments to multiple countries including the United States, Canada, Saudi Arabia, Qatar, Serbia, Cuba amongst others.

[50] The Pakistani Prime Minister, Imran Khan, received the delegation of the group in October 2019, led by their Managing Director, Eric Ip.

[51][52] Siddiqui was appointed to lead Pakistan Prime Ministers’ agendas at the World Economic Forum Annual Meetings in 2018 and 2020.

In an interview, he summarized the delegation’s engagements at WEF 2020 under the key themes of economic partnership with Turkey, increased footprint among existing Japanese conglomerates, and Digital Pakistan.

[58] He was tasked to lead the Prime Minister's agenda at the annual meeting of World Economic Forum 2020 held in January, at Davos.

[68][69] Siddiqui has earlier been called by the National Accountability Bureau (NAB) with respect to allegations that one of his companies, Azgard Nine Limited[70] (ANL) had manipulated its stock price resulting in financial losses to investors.

Despite passage of several years, no allegations have yet been proven and Ali Siddiqui has based his defence on the premise that he was neither a party nor a respondent to the cases which negates any connection with the same.