Guglielmo Castelli is an Italian contemporary artist based in Turin, Italy. His works, particularly figurative oil paintings, have been included in group exhibitions at institutions such as the Louis Vuitton Foundation, Castello di Rivoli, Villa Medici, Künstlerhaus Bethanien, and Aspen Art Museum. The artists is known for works that often contain symbolism, theatrical elements, and inspiration from literature. Castelli began his career illustrating children's books at age 15 and later turned to fashion illustration for Vogue Italia. At age 28, Castelli was listed in Forbes Magazine's 2016 "30 under 30 Europe:The Arts" list.