Alexander S. MacLean (born 1947) is an American photographic artist who is best known for his aerial photographs. His photographs have portrayed the history and evolution of the land from vast agricultural patterns to city grids, recording changes brought about by human intervention and natural processes.
MacLean graduated from Harvard College in 1969 with a Bachelor of Arts degree and earned a Master of Architecture degree from Harvard Graduate School of Design in 1973. He became interested in aerial scenery while he studied community planning and by 1975, MacLean received his commercial pilot license.