Ladányi or Ladanyi is a Hungarian surname. Notable people with the surname include:
Andrea Ladányi (born 1969), Hungarian gymnast Balázs Ladányi (born 1976), Hungarian ice hockey player Branka Ladanyi (1947–2016), American physical chemist Ferenc Ladányi (1909–1965), Hungarian actor Gedeon Ladányi (1914–1990), Hungarian speed skater Greg Ladanyi (1952–2009), American record producer László Ladányi (1907–1992), Hungarian writer Piroska Jancsó-Ladányi (1934–1954), Hungarian serial killer Tibor Ladányi (born 1991), Hungarian footballer
See also
Ladany 181298 Ladányi