William Drenttel (born October 14, 1953) is a designer, author, publisher, social entrepreneur and foundation executive. In 2012, he is the president of Winterhouse Institute, vice president of communications and design for Teach For All, co-director of the Transform Symposium at the Mayo Clinic Center for Innovation, and the recipient of Rockefeller Foundation support to develop models for design and social change. He is president emeritus of AIGA, a fellow of NYU Institute of the Humanities, a senior faculty fellow and social enterprise fellow at Yale School of Management, and the publisher and editorial director of Design Observer, a website covering design, social innovation, urbanism and visual culture. In 2010, Drenttel was elected to the Art Directors Hall of Fame and the Alliance Graphique Internationale, and was the first Henry Wolf Resident in Graphic Design at the American Academy in Rome. He lectures widely in the U.S. and abroad.
He lives in Hamden, Connecticut with his wife Jessica Helfand, son Malcolm, and daughter Fiona.