Thurman Wesley Arnold (June 2, 1891 – November 7, 1969) was an American lawyer best known for his trust-busting campaign as Assistant Attorney General in charge of the Antitrust Division in President Franklin D. Roosevelt's Department of Justice from 1938 to 1943. He later served as a Judge on the United States Court of Appeals for the District of Columbia. Before coming to Washington in 1938, Arnold was the mayor of Laramie, Wyoming and a professor at Yale Law School, where he took part in the legal realism movement and published two books: The Symbols of Government (1935) and The Folklore of Capitalism (1937). He also published The Bottlenecks of Business (1940).

Thurman Wesley Arnold
District of Columbia Circuit Court of Appeals
Born 1891 in Laramie, WY
Died 1969
FJC ID: 62
- Gender
- Male
- Race
- White
Prior employment
- Private practice, Washington, D.C.1945–present
U.S. Department of JusticeAssistant attorney general · 1938–1943
- Agricultural Adjustment AdministrationSpecial assistant to general counsel · 1933
Dean · 1927–1930- Private practice, Laramie, Wyoming1919–1927
Lecturer · 1921–1926- Laramie, WyomingMayor · 1923–1924
- WyomingState representative · 1921
field artillery, -U.S. Army lieutenant · 1919- Private practice, Chicago, Illinois1914–1919
Appointments

1943–1945 · Appointed by Franklin D. Roosevelt (Democratic)Term ended: Resignation
Education
LL.B. · 1914- Princeton UniversityB.A. · 1911