Venkatraman "Venki" Ramakrishnan (born 1952) is an American and British structural biologist of Indian origin.
Ramakrishnan was born in Chidambaram in Cuddalore district of Tamil Nadu, India. Both his parents were scientists, and his father was head of the Department of Biochemistry at the Maharaja Sayajirao University of Baroda.
He obtained his PhD degree in Physics from Ohio University. He then spent two years studying biology as a graduate student at the University of California, San Diego
In 2007 his laboratory has determined the atomic structure of the whole ribosome in complex with its tRNA and mRNA ligands. Ramakrishnan is also known for his past work on histone and chromatin structure.
He shared the 2009 Nobel Prize in Chemistry with Thomas A. Steitz and Ada E. Yonath, "for studies of the structure and function of the ribosome". He currently works at the MRC Laboratory of Molecular Biology in Cambridge, England. He is the current President of the Royal Society, having held the position since November 2015.