Theodore Bevry Olson is an American lawyer who served as the 42nd solicitor general of the United States from 2001 until 2004. Previously, Olson served as the United States Assistant Attorney General of the Office of Legal Counsel (1981–1984) under President Ronald Reagan. He remains a practicing attorney at the law firm of Gibson, Dunn & Crutcher.

The solicitor general of the United States, the fourth-highest-ranking official within the United States Department of Justice, represents the federal government in cases before the U.S. Supreme Court. Elizabeth Prelogar has served in the role since October 28, 2021.