Hetényi is a Hungarian surname. Notable people with the surname include:
Antal Hetényi (1947–2023), Hungarian judoka Ernő Hetényi (1912–1999), Hungarian tibetologist István Hetényi (1926–2008), Hungarian politician Miklós Imre Hetényi (1906–1984), Hungarian and american engineering scientist. Zoltán Hetényi (born 1988), Hungarian ice hockey player