William L. MacDonald

William Lloyd MacDonald (1921–March 6, 2010) was the Alice Pratt Brown Professor of Art at Smith College, noted for his research and publications on the architecture of the Roman Empire and its influence on European architecture.

Early in his career, MacDonald taught at Wheaton College and Yale University. He joined Smith College in 1965, and was appointed Alice Pratt Brown Professor of Art in 1974.

MacDonald's Architecture of the Roman Empire II was awarded the Society of Architectural Historians' Alice Davis Hitchcock Award in 1986 and M.I.T.'s Kevin Lynch Award in 1989.

MacDonald's Architecture of the Roman Empire I, reissued in 1982, is a standard undergraduate text on that topic.

• Early Christian and Byzantine Architecture, 1962
• The Architecture of the Roman Empire I: An Introductory Study, 1965, revised 1982
• The Pantheon: Design, Meaning, and Progeny, 1976
• The Architecture of the Roman Empire II: An Urban Appraisal, 1986
• with John Pinto, Hadrian's Villa and its Legacy, 1995