Udvardy () is a Hungarian surname. Notable people with the surname include:
Anna Udvardy (1949–2019), Hungarian film producer and production manager Ferdinand Udvardy (1895 – post 1945), Hungarian aviator György Udvardy (born 1960), Hungarian prelate Miklos Udvardy (1919–1998), Hungarian biologist and biogeographer Panna Udvardy (born 1998), Hungarian tennis player
See also