Kállay, or Kallay, is a surname. Notable persons with that name include:
Kállay family, a Hungarian noble family Béni Kállay (1839–1903), Austro-Hungarian statesman Tibor Kállay (1881–1964), Hungarian politician Miklós Kállay (1887–1967), Hungarian politician Gyula Kállai (1910–1996), Hungarian Communist politician Gabor Kallai (1959–2021), Hungarian chess Grandmaster Norbert Kállai (born 1984), Hungarian football player Foday Kallay, Sierra Leonian rebel group leader
See also Kállai