right|thumb|The City and County Building in Cheyenne, designed by Dubois and completed in 1919 right|thumb|The former Lulu McCormick Junior High School in Cheyenne, designed in association with Frederic Hutchinson Porter and completed in 1929 right|thumb|The Federal Office Building in Cheyenne, built in 1932 right|thumb|The building of the Wyoming Supreme Court in Cheyenne, completed in 1937 right|thumb|The City Hall in Laramie, completed in 1939 William Dubois (1879–1953) was an American architect and politician.
He was a prolific architect in Wyoming and nearby states, and served five terms in both houses of the Wyoming Legislature.