Michael West Mehaffy (born October 24, 1955, in Beaumont, Texas) is an urbanist, architectural theorist, urban philosopher, researcher, educator, and executive director of Sustasis Foundation,[1] based in Portland, Oregon, USA.
Mehaffy has held teaching and/or research appointments in architecture, urban planning and philosophy at eight graduate institutions in seven countries. He is currently Faculty Associate at Arizona State University. He is the former Director of Education of The Prince's Foundation for the Built Environment in London, UK, and advisor to the former Prince of Wales (now King Charles III).