Adolfo Hohenstein (Saint Petersburg, 18 March 1854 – Bonn, 12 April 1928) was a German painter, advertiser, illustrator, set designer and costume designer. He's considered the father of the Italian poster art and an exponent of the Stile Liberty, the Italian Art Nouveau. Together with Leonetto Cappiello, Giovanni Mario Mataloni, Leopoldo Metlicovitz and Marcello Dudovich, he's considered one of the most important Italian poster designers.