Józefa Joteyko (Polish pronunciation: [juˈzɛfa jɔtˈɛjkɔ]; 29 January 1866 – 24 April 1928) was a Polish physiologist, psychologist, pedagogue, and researcher. After completing her undergraduate studies at the University of Geneva, she entered medical school at the Free University of Brussels and completed her Doctor of Medicine in 1896 at the University of Paris. She opened a medical practice in France but decided two years later that she preferred research and moved back to Brussels. Operating as an assistant at the Solvay Institute of Physiology, she lectured and conducted research into musc