William Walters, Bill Walters, or Billy Walters may refer to:
William Walters (outlaw) (1869–c. 1933), also known as "Bronco Bill", outlaw during the closing days of the Old West
William Melmoth Walters (1835–1925), President of the Incorporated Law Society
William Thompson Walters (1820–1894), American businessman and art collector
Willie Walters, athlete
William Walters (MP) for Salisbury (UK Parliament constituency)
William Walters (baseball), see Pennsylvania Sports Hall of Fame
Billy Walters (gambler), see Roulette
Billy Walters (photographer), see Daily Bugle
Bill Walters (Arkansas politician) (1943-2013), American politician
Bill Walters (baseball), see Midwest League
Bill Walters (actor) in Code of Silence (film)
Bill Walters (musician) in Blue Stone (music group)