Franzen or Franzén is a Scandinavian surname. Notable people with the surname include:
Anders Franzén (1918–1993), Swedish underwater archaeologistCola Franzen (b. 1923), American writer and translatorFrans Michael Franzén (1772–1847), Swedish poetIvar Franzén (1932–2004), Swedish politicianJohan Franzén (b. 1979), Swedish professional ice hockey playerJonathan Franzen (b. 1959), American novelist and essayistJohn Erik Franzén (b. 1942), Swedish artistMathias Franzén, Swedish handball playerMia Franzén (b. 1971), Swedish politicianMichelle Franzen, American correspondent for NBC NewsNils Franzén (1910–1985), Swedish politicianNils-Olof Franzén (1916–1997), Swedish authorPeter Franzén (b. 1971), Finnish actorPeter Franzen, English journalistRikard Franzén (b. 1968), Swedish professional ice hockey playerSixten Franzén (1919–2008), Swedish scientistTorkel Franzén (1950–2006), Swedish academic