Charles Follen McKim was an American Beaux-Arts architect of the late 19th century. Along with William Rutherford Mead and Stanford White, he provided the architectural expertise as a member of the partnership McKim, Mead & White.

William Rutherford Mead was an American architect who was the "Center of the Office" of McKim, Mead, and White, a noted Gilded Age architectural firm. The firm's other founding partners were Charles Follen McKim (1847–1909) and Stanford White (1853–1906).