William O'Neill (born October 21, 1981) is a right-handed professional ten-pin bowler who competes on the PBA Tour in North America. A resident of Langhorne, Pennsylvania, his nickname on tour is "The Real Deal". O'Neill has won 13 PBA Tour titles, including two major championships at the 2009–10 U.S. Open and the 2020 PBA Players Championship. O'Neill was the first person to be a two time World Champion after winning the WTBA singles titles (gold medals) in 2010 and 2013. Bill is a pro staff member for Hammer Bowling, Dexter shoes and Vise Grips.