Franzl or Fränzl is both a given name and surname. Notable people with the name include:
Fränzl family of musicians Ferdinand Fränzl, German violinist, composer, and conductor Ferdinand Rudolph Fränzl, German trumpeter and viola player Ignaz Fränzl, German violinist and composer
Others Franzl Lang, German yodler Friederich Franzl, Austrian footballer