William Brownell may refer to:William P. Brownell (1839–1915), American soldier and Medal of Honor recipient William Crary Brownell (1851–1928), American literary and art critic William A. Whittlesey Brownell, American architect, designer of Acacia Lodge William A. Brownell (1895–1977), American educational psychologist William E. Brownell, American scientist who conducts research at Baylor College of Medicine William Brownell (politician) (1862–1916), Australian member of the Tasmanian House of Assembly