Allan Greenberg (born September 1938) is an American architect and one of the leading classical architects of the twenty-first century, also known as New Classical Architecture. He was the originator and leading practitioner of "canonical classicism," one of many design responses to postmodernism emerging in the mid-1970s. According to Paul Goldberger, architecture critic for The New York Times, Greenberg's “life’s work has been a mission to establish the validity of classicism as an architectural language in our time.” In addition to his architecture, Greenberg’s articles, teaching, and lectures have exerted a strong influence on the study and practice of contemporary classicism. In 2006, he was the first American to be awarded the Richard H. Driehaus Prize for Classical Architecture in recognition of his major contributions to architectural design and scholarship. The prize is awarded annually "to a living architect whose work embodies the principles of traditional and classical architecture and urbanism in contemporary society and creates a positive, long-lasting cultural, environmental, and artistic impact." George Hersey, author and professor of Art History at Yale University, wrote: Greenberg is the most knowing, most serious practitioner of Classicism currently on the scene in this country. . . . Greenberg belongs in the succession of Charles Follen McKim, Daniel Burnham, Henry Bacon, John Russell Pope, and Arthur Brown. And above all he belongs to the succession of Greece and Rome, of Vignola and Sanmicheli, of Vanvitelli, Ledoux, and Labrouste, to the visionary company of those who play the great game of Classicism.