János Kemény or Kemény János may refer to:
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János Kemény (author) (1903–1971), Hungarian writer, theater director and dramatist
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John G. Kemeny (1926–1992), Hungarian American mathematician, computer scientist and educator
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John Kemeny (film producer)
John Kemeny (April 17, 1925 – November 23, 2012) was a Hungarian-born Canadian film producer whom the ''Toronto Star'' dubbed "the forgotten giant of Canadian film history." His production credits included the well-known 1974 film, '' The Appre ...
(1925–2012), Hungarian-born film producer
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John Kemény (prince)
János Kemény (14 December 1607 in Magyarbükkös – 23 January 1662 in Szásznagyszőllős) was a Hungarian aristocrat, writer and prince of Transylvania.
János Kemény, offspring of a Transylvanian family of Hungarian aristocrats, he ...
(1607–1662), duke/prince of Transylvania
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