Saumitra Das (born 20 January 1962) is an Indian microbiologist and a professor at the Department of Microbiology and Cell Biology of the Indian Institute of Science. Known for his studies in the fields of molecular virology and molecular biology, Das is an elected fellow of all the three major Indian science academies namely, the Indian Academy of Sciences, the National Academy of Sciences, India and the Indian National Science Academy. The Department of Biotechnology of the Government of India awarded him the National Bioscience Award for Career Development, one of the highest Indian science awards, for his contributions to biosciences in 2005.