Himadri B. Pakrasi is the George William and Irene Koechig Freiberg Professor of Biology in the School of Arts & Sciences and Professor of Energy in the School of Engineering & Applied Science of Washington University in St. Louis. He was born in Calcutta, India, and received undergraduate and graduate training in Physics at the Presidency College and University of Calcutta. Pakrasi then moved to U.S.A. to study Biology and received a doctorate at the University of Missouri-Columbia. After spending short periods at the Michigan State University and E. I. DuPont de Nemours Company in Delaware, Pakrasi moved to Washington University where he has been on the faculty since 1987.

Pakrasi is a biochemist recognized for his work on photosynthesis and, in particular, on membrane protein complexes in cyanobacteria and plant chloroplasts. He has a keen interest in bridging the differences between the biological and physical sciences, and leads large-scale multi-institutional systems biology projects.

Pakrasi currently directs Washington University's effort to develop groundbreaking initiatives in the areas of Energy, Environment and Sustainability. He is the founding director of the University's International Center for Advanced Renewable Energy and Sustainability. He also serves as the Washington University ambassador of the McDonnell International Scholars Academy to Jawaharlal Nehru University, New Delhi, India.

Pakrasi has been an Alexander von Humboldt Fellow at Munich University, Germany; a Distinguished Fellow at the Biosciences Institute, Nagoya University, Japan; and a Lady David Visiting Professor at the Hebrew University, Jerusalem, Israel. He is an elected Fellow of the American Association for the Advancement of Science and the American Society for Microbiology.