Nihar Ranjan Jana (born 1965) is an Indian neuroscientist and a professor at the National Brain Research Centre. Known for his studies on E3 ubiquitin ligases, Jana is an elected fellow of the National Academy of Sciences, India. 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 2008.