Nagyová is a Czech- and Slovak-language feminine surname derived from the Hungarian surname Nagy according to the rules of Czech name and Slovak name formation, literally meaning "of Nagy".

Notable people with this surname include:

• Jana Nagyová (born 1959), Slovak actress
• Jana Nagyová, former name of Jana Nečasová, former Czech politician and high civil servant
• Henrieta Nagyová, Slovak professional tennis player
• Marika Nagyová, former skating partner of Karel Fajfr, German figure skating coach and a former pair skater for Czechoslovakia