William Horlick Neukom 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.

The American Bar Association (ABA) is a voluntary bar association of lawyers and law students; it is not specific to any jurisdiction in the United States. Founded in 1878, the ABA's stated activities are the setting of academic standards for law schools, and the formulation of model ethical codes related to the legal profession. As of fiscal year 2017, the ABA had 194,000 dues-paying members, constituting approximately 14.4% of American attorneys. In 1979, half of all lawyers in the U.S. were members of the ABA. The organization's national headquarters are in Chicago, Illinois, and it also maintains a significant branch office in Washington, D.C.