Subramanian Anantha Ramakrishna (born 30 November 1972) is a Professor of Physics in Indian Institute of Technology Kanpur specializing in optics and condensed matter physics. He was awarded the Shanti Swarup Bhatnagar Prize for Science and Technology, India's highest prize for excellence in science, mathematics and technology, in the physical sciences category in the year 2016. Ramakrishna obtained M.Sc. degree from Indian Institute of Technology Kanpur in 1995 after pursuing the integrated 5-year M.Sc. programme and secured Ph.D. from Raman Research Institute, Bangalore, in 2001 for a thesis titled "Light transport and localization in Active and passive random media" written under the supervision of Prof. N. Kumar. He spent two years in Imperial College, London, as a Post Doctoral researcher and joined Indian Institute of Technology Kanpur as an Assistant Professor in May 2003 where he now holds the position of Professor.