|Born||30 May 1964|
|Fields||combinatorics, communication complexity|
|Institutions||Tata Institute of Fundamental Research, Mumbai|
|Alma mater||Indian Institute of Technology, Kharagpur, Rutgers University|
|Doctoral advisor||Endre Szemerédi|
|Doctoral students||K V Subrahmanyam, S Venkatesh, Pranab Sen, Sivaramakrishnan Sivasubramaniam, Rahul Jain, Chinmoy Dutta, Saswata Shannigrahi|
|Notable awards||Shanti Swarup Bhatnagar Prize for Science and Technology|
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 B.Tech 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, United States in 1991. His research supervisor at Rutgers was Endre Szemerédi. 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. 
- Fellow of the Indian Academy of Sciences, since 2007.
- "Jaikumar Radhakrishnan" (PDF). Tata Institute of Fundamental Research, Mumbai. Retrieved 1 July 2013.
- "Shanti Swarup Bhatnagar Awards For Science And Technology 2008". Department of Science & Technology, Govt of India. Retrieved 1 July 2013.
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