Thomas E. Kauper, the Henry M. Butzel Professor Emeritus of Law at Michigan Law, is an antitrust expert.

In recent years, Kauper has focused on international antitrust and competition policy of the EU. He has twice served in ranking positions with the US Department of Justice, first as deputy assistant attorney general in the Office of Legal Counsel and then as assistant attorney general in charge of the Antitrust Division, the chief enforcement officer in that field. In these positions, he worked on matters ranging from executive power and treaty obligations to the application of American antitrust laws to international transactions and conduct abroad.

He also served for 14 years as a member of the American Bar Association Council of the Antitrust Section and for one year served as vice chairman of the section. Kauper spent the winter 2002 semester as the John M. Olin Visiting Professor of Business, Economics, and Law at Harvard Law School. He has written in the fields of property and antitrust, and is coauthor of Property: An Introduction to the Concept and the Institution. He practiced law in Chicago and began his academic career at the Law School in 1964.