Borys Illich Oliynyk (Ukrainian: Борис Ілліч Олійник; Russian: Борис Ильич Олейник, romanized: Boris Ilyich Oleynik; 22 October 1935 – 30 April 2017) was a Soviet and Ukrainian writer and politician who was a People's Deputy of Ukraine from 1990 to 2006. Oliynyk was one of the leaders of the People's Movement of Ukraine and later a founder of the Communist Party of Ukraine.