Milford Wayne Donaldson (born August 13, 1943) is a preservation architect. He presently serves as the Chairman of the Advisory Council on Historic Preservation (ACHP). Donaldson was originally appointed to the position in 2010, and President Barack Obama reappointed him in August 2013 for another four-year term. Formerly the State Historic Preservation Officer of California, Donaldson has been practicing preservation architecture as a profession for more than 40 years.