Jaikumar Radhakrishnan (born 30 May 1964) is an Indian computer scientist specialising in combinatorics and communication complexity.
He has served as dean of the School of Technology and Computer Science at the Tata Institute of Fundamental Research, Mumbai, where he is currently a professor.He obtained his BTech degree in Computer Science and Engineering from the Indian Institute of Technology, Kharagpur in 1985 and his PhD in Computer Science from Rutgers University, NJ, USA, in 1991.
His areas of research include combinatorics, randomness, pseudorandomness, information theory, communication complexity, computational complexity theory, quantum computation, quantum information science.
He was awarded the Shanti Swarup Bhatnagar Prize for Science and Technology in the mathematical sciences in 2008.