Johann Michael Voltz (October 16, 1784 - April 17, 1858) was a German painter, graphic artist, and political cartoonist. Voltz apprenticed with the engraver and art dealer Friedrich Weber in Augsburg. He focused on battle scenes and other contemporary historical images. These include events of the Napoleonic wars, the wars of German War of Liberation against Napoleon, and the Greek War of Independence. Voltz was also known as a prominent German political cartoonist. His cartoons directed at Napoleon Bonaparte are still reproduced in history textbooks. His œuvre includes about 5,000 drawings and etchings.