William or Bill Nichols may refer to:William Nichols, Dean of Chester, 1644–1657 William Nichols, secretary of John Fell, 17th century clergyman William Nichols (mariner), English sea captain William Nichols (architect) (1780–1853), English-born American architect William T. Nichols (1829–1882), American politician, soldier, and businessman William Nichols, American Civil War sailor and Medal of Honor recipient William Ripley Nichols (1847–1886), American chemist and leading authority on water purification William Ford Nichols (1849–1924), Bishop of California in the Episcopal Church William Francis Nichols (1852–1917), American businessman and politician William H. Nichols (1852–1930), American chemist and businessman William Nichols, founder of Nichols School, Buffalo, New York, in 1892 Bill Nichols (politician) (1918–1988), United States Representative from Alabama Billy Nichols (1940–2025), American musician Bill Nichols, American historian and film theorist William Nichols (artist), American artist