Hisashi Kobayashi (Japanese: 小林久志 Kobayashi Hisashi; born on June 13, 1938) is the Sherman Fairchild University Professor of Electrical Engineering and Computer Science, Emeritusat Princeton University in Princeton, New Jersey. His fields of expertise include applied probability; queueing theory; system modeling and performance analysis; digital communication and networks; network architecture; investigation of the Riemann hypothesis; and stochastic modeling of an infectious disease. He was a Senior Distinguished Researcher at the National Institute of Information and Communications Technology (NICT), Japan from September 2008 to March 2016.