commission appointed by U.S. president Lyndon B. Johnson on Nov. 29, 1963, to investigate the circumstances surrounding the assassination of his predecessor, John F. Kennedy, in Dallas, Texas, on Nov. 22, 1963, and the shooting of Lee Harvey Oswald (Oswald, Lee Harvey) (q.v.), the alleged assassin, two days later. The chairman of the commission was the chief justice of the United States, Earl Warren; (Warren, Earl) the other members were two U.S. senators, Richard B. Russell of Georgia and John Sherman Cooper of Kentucky; two members of the U.S. House of Representatives, Hale Boggs of Louisiana and Gerald R. Ford of Michigan; and two private citizens, Allen W. Dulles, former director of the Central Intelligence Agency, and John J. McCloy, former president of the International Bank for Reconstruction and Development.

After months of investigation the commission submitted its findings to President Johnson in September 1964, and they were immediately made public. The commission reported that the bullets that had killed President Kennedy were fired by Oswald from a rifle pointed out a sixth-floor window of the Texas School Book Depository. The commission also reported that it had found no evidence that either Oswald or Jack Ruby, a Dallas nightclub operator charged with Oswald's murder, was part of any conspiracy, foreign or domestic, to assassinate President Kennedy. This conclusion of the commission was later questioned in a number of books and articles and in a special congressional committee report in 1979.

The commission described in detail its investigation of Oswald's life but did not itself attempt to analyze his motives. The commission also proposed the strengthening of the Secret Service organization; the adoption of improved procedures for protecting the president; and the enactment of legislation to make killing the president or vice president a federal offense. The report was published by the U.S. Government Printing Office under the title Report of the President's Commission on the Assassination of President John F. Kennedy (1964).