Sonja Biserko (Serbian Cyrillic: Соња Бисерко; born 14 February 1948, Belgrade, FPR Yugoslavia) is a Serbian campaigner for human rights. She is the founder and president of the Helsinki Committee for Human Rights in Serbia.
On 8 May 2013, she was appointed as a member of the United Nations human rights investigation into North Korea, with Michael Kirby and Marzuki Darusman. On 18 February 2014, they published a report which received worldwide attention.
Sonja Biserko holds a degree from the University of Belgrade Faculty of Economics. She served as a diplomat for the former Yugoslavia in London and at the United Nations in Geneva for over 20 years until 1991 when she resigned her diplomatic position in protest over the policies of Slobodan Milošević amid rising nationalism throughout Yugoslavia. In Geneva in 1991 she organised one of the first meetings of the Yugoslav opposition to Milosevic. In 1994 she founded the Helsinki Committee for Human Rights in Serbia (HCHRS) and she is the organisation's current President. HCHRS, a member of the European network of Helsinki Committees for Human Rights and formerly part of the dissolved International Helsinki Federation for Human Rights, is a professional organisation working to promote the rule of law and protection of human rights in Serbia, challenging nationalist dogma, documenting war crimes and acting as advocate for the victimised and disenfranchised.