Egerton Swartwout (March 3, 1870 – February 18, 1943) was an American architect, most notably associated with his New York architectural firm Tracy and Swartwout and McKim, Mead & White. His buildings, numbering over 100, were typically in the Beaux-Arts style. Six of his buildings are recognized on the National Register of Historic Places, and three others have been given landmark status by their city commissions.