Pak Un-jong or Park Un-jong (Korean: 박은정; Hanja: 朴恩正; born 2 October 1952) is a South Korean bioethics expert previously served as President Moon Jae-in's first chairperson of Anti-Corruption and Civil Rights Commission.

[2] From 2010 she is leading Asian Women Law Society and its research Institute.

[3] Pak was a member of International Bioethics Committee of UNESCO from 1998 to 2004 and Council for Comprehensive Biotechnology Policy of now-Ministry of Science and ICT, which is established by Biotechnology Support Act,[4] from 2000 to 2004.

In 2002 she was elected as the vice chair of Korean Association of Institutional Review Boards.

From 2002 to 2007 she chaired Ethics Committee of Stem Cell Research Center for Drug Development of Korea.