William Adams Delano (January 21, 1874 – January 12, 1960), an American architect, was a partner with Chester Holmes Aldrich in the firm of Delano & Aldrich. The firm worked in the Beaux-Arts tradition for elite clients in New York City, Long Island and elsewhere, building townhouses, country houses, clubs, banks and buildings for colleges and private schools. Moving on from the classical and baroque Beaux-Arts repertory, they often designed in the neo-Georgian and neo-Federal styles, and many of their buildings were clad in brick with limestone or white marble trim, a combination which came to be their trademark.