Franz is a surname of German origin. Notable persons with this name include:

• Agnes Franz (1794–1843), German writer
• Anselm Franz (1900–1994), Austrian engineer
• Arthur Franz (1920–2006), American actor
• Dennis Franz (born 1944), American actor noted for NYPD Blue
• Eduard Franz (1902–1983), American actor
• Elizabeth Franz (born 1941), American actress
• Ellen Franz (1839–1923), German pianist and actress
• Friedrich Franz (1783–1860), Moravian physicist and mathematician
• Frederick William Franz (1893–1992), past president of the Jehovah's Witnesses
• Helmut Franz (1911–2002), German academic teacher and choral conductor
• Horst Franz (born 1940), German football manager
• John E. Franz (born 1929), American organic chemist
• Johnny Franz (1922–1977), UK record producer
• Katherine Franz (born 1972), American chemist
• Kurt Franz (1914–1998), German Nazi SS commandant of Treblinka extermination camp
• Ludwig Franz (1922–1990), German politician
• Marie-Louise von Franz (1915–1998), Swiss Jungian psychologist and scholar
• Maik Franz (born 1981), German footballer
• Mike Frantz (born 1986), German footballer
• Nolan Franz, American football player
• Raymond Franz (1922–2010), former Jehovah's Witness
• Robert Franz (1815–1892), German composer
• Rod Franz (1925–1999), American football player
• Ron Franz (1945-2022), American professional basketball player
• Walter Franz (1911–1992), German theoretical physicist
• Wilhelm Franz (1913–1971), German audio engineer
• Wolfgang Franz (economist) (born 1944), German economist
• Wolfgang Franz (mathematician) (1905–1996), German mathematician