Gárdonyi (means "from (of) Gárdony") is a Hungarian word and surname:
Géza Gárdonyi, né Ziegler (1863, Agárd (Agárdpuszta), Gárdony - 1922, Eger), Hungarian
Birthhouse of Géza Gárdonyi (Hungarian: Gárdonyi Géza Emlékház)
Birthhouse Museum of Géza Gárdonyi (Hungarian: Gárdonyi Géza Emlékmúzeum)
National Géza Gárdonyi Literature Society (Hungarian: Országos Gárdonyi Géza Irodalmi Társaság)
Gárdonyi Society (Hungarian: Gárdonyi Társaság)
Zoltán Gárdonyi (1906–1986), Hungarian composer and musicologist
Zsolt Gárdonyi (born 1946, Budapest), Hungarian composer, organist; son of Zoltán
