Szőnyi or Szönyi is a Hungarian surname. Notable people with these surnames include:
People named Szőnyi
Erzsébet Szőnyi (1924–2019), Hungarian composer and music teacher Ferenc Szőnyi (born 1964), Hungarian ultra-triathlete and ultra-runner István Szőnyi (1894–1960), Hungarian painter and printmaker (1933–2013), Hungarian opera singer (mezzo-soprano) Tamás Szőnyi (born 1957), Hungarian mathematician
People named Szönyi
Anca Szönyi Thomas (born 1958), Romanian visual artist and actress Julieta Szönyi (1949–2025), Romanian theatre and film actress
See also Michael Szonyi (born 1967), a Canadian historian and sinologist of Hungarian descent Szőnyi úti Stadion, a sports stadium in Budapest, Hungary Szőny, a former town in Hungary, now part of the city of Komárom