Jorge Eduardo Hirsch (born 1953) is an Argentine American professor of physics at the University of California, San Diego.

[4] Hirsch's scientific work is involved with understanding collective, large-scale properties of solids, such as superconductivity and ferromagnetism, based on explanations starting from small-scale mechanisms.

[9] During early 2006 Hirsch argued that "multiple pieces of independent evidence suggest that America is embarked in a premeditated path that will lead inexorably to the use of nuclear weapons against Iran in the very near future"[10] and that "neither the media nor Congress are bringing up the inconvenient little fact that the military option will necessarily lead to the use of nuclear weapons against Iran.

"[11] He also speculated that in order to justify an attack on Iran using nuclear weapons, US authorities might make a false, but difficult to disprove, claim that Iranian biologists are trying to develop a strain of the H5N1 avian flu virus which would be transmissible from human to human, and which would be transported to Europe by birds migrating north with the onset of the northern summer of 2006.

[12] In April 2006, Hirsch initiated a letter to President George W. Bush, co-signed by twelve other physicists, warning of the dangers of using tactical nuclear weapons against Iran.