Osman Baydemir (born 1971 in Diyarbakır) is a Kurdish politician, lawyer and human rights activist.

In February 1999 he became one of the first lawyers who volunteered to defend Abdullah Öcalan, the leader of the Kurdistan Workers' Party (PKK).

[12] As a human rights activist and as a politician, Osman Baydemir has been subjected to persecution on various levels.

According to a report of Amnesty International of 12 February 2004 there were 200 court cases against him for his human rights activities.

[15] After the assassination of Armenian journalist Hrant Dink in January 2007 Osman Baydemir was among several people who received death threats.

[27] After his expulsion of the Turkish parliament he left Turkey and went into exile to London, United Kingdom.