Johann Balzer (6 August 1738 – 14 December 1799) was an 18th-century Czech engraver in the Kingdom of Bohemia.
Balzer was born in 1738 at Kuks in Bohemia. He was first instructed in art by Michal Rentz, but subsequently completed his education by travelling through Germany, where he visited several Academies. He chiefly resided at Prague, where he produced numerous works, mostly portraits, and died in 1799. He left two sons, Anton (1771–1807) and Johann Karl (1771–1805), who were both engravers, together with his brothers Mathias and Gregor.
His works include: