Reitz is a surname of German origin. Notable people with the surname include:

Christopher Reitz (born 1973), German field hockey goalkeeper Curtis R. Reitz (1929–2025), American academic, scholar of criminal law Deneys Reitz (1882–1944), South African writer and statesman Don Reitz (1929–2014), American ceramic artist Edgar Reitz (born 1932), German filmmaker Erik Reitz (born 1982), ice hockey player Francis Reitz (disambiguation), several people Gijs Bosch Reitz (1860–1938), Dutch painter Hans Walter Reitz (1888–1955), German architect of New Objectivity (architecture) Heinie Reitz (1867–1914), American baseball player Heinrich Reitz, German rugby union international J. Wayne Reitz (1908–1993), fifth president of the University of Florida (1955–1967) Joe Reitz (born 1985), National Football League player for the Indianapolis Colts Karl Reitz (1887–1943), German musician, also refer to Busch Quartet and August Heinrich Bruinier Ken Reitz (1951–2021), Major League Baseball player Rosetta Reitz (1924–2008), American feminist, jazz historian and music producer