Rafi Muhammad Chaudhry (Urdu: رفیع محمد چوہدری‎) FPAS HI, NI, SI, Skdt (1 July 1903 – 4 December 1988) best known as R. M. Chaudhry, was a Pakistani nuclear physicist and a professor of particle physics at the Government College University. His teaching and instructions on modern physics influenced many of his student to pursue career in physics who regard him as one of the key architects of having been the pioneer of experimental nuclear physics research in Pakistanand, along with Abdus Salam and Ishrat Hussain Usmani, one of the main creators of Pakistan's nuclear weapons research program in the 1970s. Chaudhry, who served as professor of nuclear physics at Government College University, was later referred to by Dr. Samar Mubarakmand, one of his students, as "the true father of the nucl