Friedrich Wilhelm von Prittwitz und Gaffron (1 September 1884 – 1 September 1955) was a German Ambassador to the United States under the Weimar Republic, from 1928 until April 14, 1933. He was in office at the time that Adolf Hitler came to power in Germany, and resigned from the diplomatic corps in protest the day after Hitler was appointed Chancellor. He had hosted German playwright Lion Feuchtwanger at a dinner that day. On the day of his resignation, Prittwitz called Feuchtwanger and recommended that he not return to Germany.
Friedrich also helped his younger cousin Gunild flee Eastern Germany and arrive safely in America where she is a successful painter. He helped several other family members get United States visas and will always be loved for this charitable work.