Justus Johannes Heindrich Ribock (occasionally: Riebock, Riboc) (12 September 1743 – 1785) was a German physician, amateur flute player and designer born in Egestorf, Germany. Son of Pastor Johann Heidrich Ribock (1696–1753), he studied in the University of Helmstedt between 1760 and 1762, and then in Rinteln and Halle, finally graduating as a physician in Göttingen in 1763. He died in Hanover, Lower Saxony, in 1785.