Harley DeWitt Nichols (February 3, 1859 - October 9, 1939) was an American architect, etcher, illustrator, bird's-eye view artist, and painter. Nichols was born in Barton, Wisconsin. He studied art in New York and Munich, and afterwards divided his time between Brooklyn, New York, and Los Angeles, California. He illustrated books, taught art (Echo Mountain Summer School), worked with Harper's and Century magazines, and collaborated with Richard Rummell (1848 - 1924) to produce bird's-eye views of American universities. He returned to San Juan Capistrano, California, and died in Laguna Beach. He was a lifelong member of the Salmagundi Club of New York.