William Horlick Neukom (born 1942) is an American former managing general partner of the San Francisco Giants baseball team ownership group. He held this position from May 2008 to December 31, 2011 and he was the managing partner when the Giants won the World Series in 2010, the first World Series win since the team had moved to California in 1958. Prior to holding this position, he was President of the American Bar Association in 2007–08. He was the principal legal counsel for Microsoft for almost 25 years. He was also the Chairman of the law firm of Preston Gates & Ellis, LLP in Seattle, now part of K&L Gates. He is a Co-Founder & CEO of the World Justice Project.