Barun Roy, born Prasun Kanti Ray, (10 November 1922 – 8 December 2009) was a politician of the Communist Party of Bangladesh.
Roy was born on 10 November 1922 in Beheli in Jamalganj Upazila of Sunamganj District, East Bengal, British Raj.
In prison he met famous communist politicians, Moni Singh, Robi Dham, etc.
During this period he remained in hiding from the police and helped organize protests against President Ayub Khan.
Following the start of the Bangladesh Liberation war in 1971, he moved to India and trained as a member of the Mukti Bahini.
He helped organize guerrilla forces composed of left wing political supporters to fight the Pakistan Army in the Bangladesh Liberation war.