Qaisar Shafi is a Pakistani-American theoretical physicist and the Inaugural Bartol Research Institute Professor of Physics at the University of Delaware.

His PhD advisor was the late Nobel Laureate Professor Abdus Salam, whom he subsequently joined at the International Centre for Theoretical Physics (ICTP) in Trieste, Italy.

[5] Since 1983, Shafi has been a faculty member at the Bartol Research Institute, University of Delaware, which in 2005 merged with the Department of Physics and Astronomy.

Shafi’s work has focused on Grand Unified Theories (GUTs), Yukawa coupling unification, dark matter and collider physics, inflationary cosmology, topological defects, thermal inflation, superstring phenomenology and related topics.

[22] In addition, he was also one of the principal organizers of the BCVSPIN (acronym denoting the countries Bangladesh-China-Vietnam-Sri Lanka-Pakistan-India-Nepal) schools, which he co-founded in 1989 with Professors Abdus Salam, Jogesh Pati and Yu-Lu.