Louis B. Susman is an American lawyer, retired investment banker, and the former United States Ambassador to the United Kingdom. Nominated by President Barack Obama, he was confirmed by the Senate on July 10, 2009, and sworn in by Secretary of State Hillary Clinton.

The Washington University School of Law (WashULaw) is the law school of Washington University in St. Louis, a private research university in St. Louis, Missouri. Founded in 1867, the law school was originally located in downtown St. Louis, and relocated in 1904 to the Danforth Campus of Washington University in St. Louis.