Nader Tehrani (born 1963 in London) is an Iranian-American designer and educator. In 2011 in partnership with Katherine Faulkner, Tehrani founded NADAAA, a practice dedicated to the advancement of design innovation, interdisciplinary collaboration, and an intensive dialogue with the construction industry. The two were later joined by partner Arthur Chang. Tehrani is the former Dean of the Cooper Union's Irwin S. Chanin School of Architecture. Previously he was a professor of architecture at the MIT School of Architecture and Planning, where he served as Head of the Department from 2010 to 2014, MIT. He previously founded Office dA in 1986 with Rodolphe el-Khoury, later being joined by Mónica Ponce de León in 1991.