Professor Vitit Muntarbhorn (Thailand) is an international human rights expert and professor of law at Chulalongkorn University in Bangkok, Thailand and the co-Chair of the Civil Society Working Group for an ASEAN Human Rights Mechanism. He is the former Executive Director of Child Rights ASIANET, a regional network for the protection of children established by the United Nations Children's Fund (UNICEF), the International Law Association of Thailand, and the Faculty of Law at Chulalongkorn University. He was nominated United Nations Special Rapporteur on the Situation of Human Rights in the Democratic People's Republic of Korea in 2004, a position he held until 2010. In 2004 he was awarded the UNESCO Prize for Human Rights Education. He served as the United Nations Special Rapporteur on the Sale of Children, Child Prostitution and Child Pornography from 1990 to 1994. 

Professor Muntarbhorn has also been involved in various UN activities, principally as a member of the Committee of Experts on the Application of Conventions and Recommendations of the International Labour Organization. He has also worked as a consultant with the Office of the United Nations High Commissioner for Human Rights, the United Nations High Commissioner for Refugees, the Food and Agricultural Organization, UNICEF, UNESCO, the World Health Organization and the United Nations University.

Professor Muntarbhorn has taught at a variety of institutions, including the Faculty of Law at Reading University in the United Kingdom, and at the Canadian Human Rights Foundation. He established child/youth legal literacy projects to educate children about their basic rights. In 1992, he was the spokesperson for the Campaign for Popular Democracy in Thailand. He was a faculty member of the Salzburg Seminar Session 320 on Beyond Child Survival: Promoting the Wellbeing of Young Children.

A graduate of Oxford University and the Free University of Brussels, Professor Muntarbhorn is also a barrister at the Middle Temple in London.