Peter Fox is a professor in the School of Sustainable Engineering and the Built Environment in the Ira A. Fulton School of Engineering at Arizona State University. He is also the graduate program chair for civil engineering.

Fox's professional interests are primarily in water reuse, biological treatment processes and combined biological-adsorptive systems. He has focused his work on natural treatment systems and water reuse for the last 12 years. Fox has recently been expanding his expertise on sustainable water systems to include desalination. He is a member of many professional societies including the American Water Works Association, Association of Environmental Engineering Professors, American Society of Civil Engineers, Arizona Water Pollution Control Association, International Association of Water Quality and the Water Environment Federation. He is an associate editor of the American Society of Civil Engineering's Journal of Environmental Engineering. He was awarded the Quentin Mees Research Awards from the Arizona Water Pollution Control Association in 1991,1994, 1997 and 2003.