Donn Barber (1871–1925)[1] was an American architect.
He designed buildings that are listed on the U.S. National Register of Historic Places, including:
He was born in 1871 and studied at Yale, then post-graduate courses at Columbia, "then at the Beaux Arts, Paris, where he was the ninth U. S. student to receive a diploma. After an apprenticeship in the offices of Carrere & Hastings, Cass Gilbert and Lord & Hewlett, he set up his own firm. His career since then is written in such buildings as: Connecticut State Library, Hartford Aetna National Bank, Aetna Life Insurance, in Hartford; the Department of Justice Building in Washington; and in Manhattan: the New York Cotton Exchange, National Park Bank, the Mutual Bank, the Lotus Club, the Institute of Musical Art.[1]