Richard Stockton MacNeish (April 29, 1918 – January 16, 2001), known to many as "Scotty", was an American archaeologist. His fieldwork revolutionized the understanding of the development of agriculture in the New World and the prehistory of several regions of Canada, the United States and Central and South America. He pioneered new methods in fieldwork and materials analysis and brought attention to the importance of interdisciplinary collaboration. His legacy has influenced generations of archaeologists.