Istvan Nagy
István Nagy is the name of the following people:
- István Nagy (Bishop) (1725–1804), Hungarian Roman Catholic Bishop
- István Nagy (ice hockey player) (born 1981), Romanian ice hockey player
- István Nagy (painter) (1873–1937), Hungarian painter
- István Nagy (writer) (1904–1977), Hungarian writer
- István Nagy (soccer player, 1922) (1922– ??), Hungarian soccer player
- István Nagy (soccer player, 1939) (* 1939), Hungarian soccer player
- István Nagy (composer) (born 1940), Hungarian composer
- István Nagy (soccer player, 1951) (born 1951), Hungarian soccer player
- István Nagy (athlete) (born 1959), Hungarian sprinter
- István Fischer de Nagy (1754–1822), Hungarian clergyman, Archbishop of Eger
