Boris Arkadyevich Rybkin (Russian: ????´? ????´?????? ??´????) – born Boruch Aronovich Rivkin Russian: ????? ???????? ??????; 19 June 1899 – 27 November 1947) was a Soviet diplomat and a secret agent of NKVD.
He worked as a junior diplomatic official named Boris Yartsev in the embassy of the Soviet Union in Helsinki.