Kitty O'Brien Joyner (July 11, 1916 – August 16, 1993) was an American electrical engineer with National Advisory Committee for Aeronautics (NACA), and then with the National Aeronautics and Space Administration (NASA) upon its replacement of NACA in 1958. She was hired in 1939 as the organization's first woman engineer, shortly after she had completed her degree as the first woman to graduate from the University of Virginia's engineering program.