William C. Stuart (b. 1975, Bronx, NY) is an American artist based in New York, with a studio in the West Chelsea Arts Building and a workshop in Buenos Aires, Argentina. He graduated magna cum laude from Colgate University with honors in Studio Art and received the John F. Fitchen III Art Prize in 1998. His education also included studies in Paris. In 2002, he founded Costantini Design, a furniture and lighting studio that brings together his artistic practice, material exploration and collaboration with skilled makers. His work spans sculpture, video, painting, photography and writing, and has been exhibited and collected internationally.
In 2019, Costantini began representing other artists, including Mirei Monticelli, a 2026 recipient of the LVMH Métiers d’Excellence award.
