Jagdish Mehra (April 8, 1931 – September 14, 2008) was an Indian–American physicist and historian of science.
Mehra was educated at Allahabad University, the Max Planck Institut für Physik and the University of California at Los Angeles and obtained a Ph.D. in theoretical physics at the University of Neuchatel.
He is particularly well known for a book in 6 volumes on The Historical Development of Quantum Theory,[3] which he wrote with Helmut Rechenberg.
He also wrote a biography of Richard Feynman.
He also wrote a book on the controversy surrounding the exact role David Hilbert played in the development of the gravitation theory of Albert Einstein.