Rajagopalan Radhakrishnan (commonly known as R. Radhakrishnan, born 1949) is Distinguished Professor of English and Comparative Literature at the University of California, Irvine. He is a postcolonial theorist and literary critic. Radhakrishnan earned his PhD in 1983 from Binghamton University. He moved to UC Irvine from the University of Massachusetts Amherst in the 2004–2005 academic year. Radhakrishnan is the 2020 winner of the Distinguished Achievement Award for Outstanding Scholarship of the South Asian Literary Association.