Ezra Getzler (born 9 February 1962 in Melbourne) is an Australian mathematician and mathematical physicist.
Getzler studied from 1979 to 1982 at the Australian National University in Canberra (bachelor's degree with honours in 1982).
In 1982 he moved to Harvard University with a Fulbright Scholarship; he received his PhD in 1986 under Arthur Jaffe, with a thesis entitled Degree theory for Wiener maps and supersymmetric quantum mechanics.
He was a guest professor at several universities, including the Max-Planck-Institut für Mathematik in Bonn (1996), the École Normale Supérieure (1992), the Institut Henri Poincaré (2007), the University of Nice Sophia Antipolis, the Imperial College London (2007/8), and the University of Paris VI.
[5] Getzler is known for his new proof (1983) of the Atiyah–Singer index theorem using supersymmetry, based upon ideas of Luis Álvarez-Gaumé and Edward Witten in mathematical physics.