Pfaff is a surname. Notable people with the surname include:

Alfred Pfaff, German football player Anita Bose Pfaff, economist Brad Pfaff, American politician Chris Pfaff, American television actor Debby Pfaff, reality show personality Dieter Pfaff (1947–2013), German actor Eva Pfaff, German tennis player Ferenc Pfaff, Hungarian architect , German manufacturer of sewing machines Jean-Marie Pfaff, Belgian football player Johann Friedrich Pfaff, German mathematician Concepts named after him include the Pfaffian, Pfaffian functions, and the Pfaff problem 29491 Pfaff, a main-belt asteroid named in his honour John Pfaff, American legal scholar Judy Pfaff, artist Kristen Pfaff, American musician Lyndsey Pfaff, reality show personality Michael Pfaff, American musician Petra Pfaff, East German hurdler Richard William Pfaff, American historian of the liturgy William Pfaff, American author

Other uses Pfaff, a sewing machine manufacturer Pfaff Motorsports, a Canadian auto racing team Pfaff v. Wells Electronics, Inc. US Supreme Court case involving inventor Wayne K. Pfaff H. & J. Pfaff Brewing Company

See also faff faffing