William Baer (lawyer)

William Baer is an American antitrust lawyer. He is known for his expertise in competition law and his extensive experience in government and private practice.

Baer served as the Assistant Attorney General for the Antitrust Division of the U.S. Department of Justice (DOJ) from 1995 to 2000 under President Bill Clinton. In this role, he oversaw the government's enforcement of antitrust laws across a wide range of industries, including high-profile cases involving mergers, monopolies, and cartels.

Prior to his government service, Baer was a partner at the law firm Arnold & Porter (now Arnold & Porter Kaye Scholer LLP). He returned to the firm after leaving the DOJ and continued to practice antitrust law there. He has represented clients in various antitrust matters, including merger reviews, investigations, and litigation.

Baer is frequently cited as an authority on antitrust law and has written and spoken extensively on the subject. He is a member of various professional organizations related to antitrust and competition policy. His work has contributed significantly to the development and understanding of antitrust law and its application in the modern economy.