Professor Andrew "Andy" MacMillan OBE RSA FRIAS RIBA (11 December 1928, Maryhill, Glasgow - 16 August 2014, Inverness) was a Scottish architect, educator, writer and broadcaster. He served as head of the Mackintosh School of Architecture in Glasgow between 1973 and 1994 and was awarded the Royal Society of Arts gold medal (1975) and the inaugural lifetime achievement award of the Royal Incorporation of Architects in Scotland.