Walter Duncan

Walter Duncan may refer to:


 * Walter Leslie Duncan (1883–1947), Australian politician
 * Walter Gordon Duncan (1885–1963), politician in South Australia
 * Walter Hughes Duncan (1848–1906), pastoralist and politician in South Australia
 * Walter Jack Duncan (1881–1941), United States Army war artist
 * Walter Duncan (painter) (1848–1932), British painter
 * J. Walter Duncan, American businessman