The Slav Epic is a cycle of 20 large canvases painted by Czech Art Nouveau painter Alphonse Mucha between 1910 and 1928. The cycle depicts the mythology and history of Czechs and other Slavic peoples. In 1928, after finishing his monumental work, Mucha bestowed the cycle upon the city of Prague on the condition that the city build a special pavilion for it.

Alfons Maria Mucha, known internationally as Alphonse Mucha, was a Czech painter, illustrator, and graphic artist. Living in Paris during the Art Nouveau period, he was widely known for his distinctly stylized and decorative theatrical posters, particularly those of Sarah Bernhardt. He produced illustrations, advertisements, decorative panels, as well as designs, which became among the best-known images of the period.