William Nichols
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 , English sea captain
- William Nichols , English-born American architect
- William T. Nichols, American politician, soldier, and businessman
- William Nichols , American Civil War sailor and Medal of Honor recipient
- William Ripley Nichols, American chemist and leading authority on water purification
- William Ford Nichols, Bishop of California in the Episcopal Church
- William Francis Nichols, American businessman and politician
- William H. Nichols, American chemist and businessman
- William Nichols, founder of Nichols School, Buffalo, New York, in 1892
- Bill Nichols , United States Representative from Alabama
- Billy Nichols, American musician
- Bill Nichols , American historian and film theorist
- William Nichols , American artist