For Saint Mercurialis of Forlì, see Saint Mercurialis.
For the plant genus see Mercurialis (plant).Girolamo Mercuriale (Italian: Geronimo Mercuriali; Latin: Hieronymus Mercurialis, Hyeronimus Mercurialis) (September 30, 1530 – November 8, 1606) was an Italian philologist and physician, most famous for his work De Arte Gymnastica.