Joseph Katz may refer to:
Joseph Katz (Soviet agent) (1912–2004), worked for Soviet intelligence from the 1930s to the late 1940s Joseph Katz (professor), Israel-born American fluid dynamicist Joseph J. Katz (1912–2008), chemist at Argonne National Laboratory Joseph M. Katz (1913–1991), entrepreneur who founded a gift-wrap manufacturing company
See also Josef Kates (1921–2018), born Josef Katz, Canadian engineer Joseph M. Katz Graduate School of Business