Jean-Baptiste Feuvrier (called Joannès; 6 October 1842 – 29 November 1926) was a French military physician, who, from August 1889 to October 1892, served as the personal physician to Naser al-Din Shah Qajar (r. 1848–1896), King (Shah) of Qajar Iran. He wrote a travelogue about his life in Iran, the Trois ans à la cour de Perse. Prior to his appointment in Iran, he served as a personal physician to Prince Nicholas of Montenegro (r. 1860–1918).