The Marine Corps League is the only Congressionally chartered United States Marine Corps-related veterans organization in the United States. Its Congressional Charter was approved by the 75th U.S. Congress and signed by President Franklin D. Roosevelt on August 4, 1937. The organization credits its founding in 1923 to legendary Marine Corps Commandant John A. Lejeune.
The association holds a congressional charter under Title 36 of the United States Code.