Edwin Anderson Walker (November 10, 1909 – October 31, 1993) was a United States Army major general who served in World War II and the Korean War. Walker resigned his commission during 1959, but Eisenhower refused to accept his resignation and gave Walker a new command of the 24th Infantry Division in Augsburg, Germany. Walker again resigned his commission in 1961 after being publicly and formally admonished by the Joint Chiefs of Staff for allegedly referring to Eleanor Roosevelt and Harry S. Truman as "pink" in print and for violating the Hatch Act of 1939 by attempting to influence the votes of his troops. President John F. Kennedy accepted his resignation, making Walker only the second US general to resign during the 20th century. (The first was General of the Army Dwight Eisenhower, who resigned his commission so he could accept the Office of the Presidency. But unlike Walker, after his two terms as president, his successor President Kennedy obtained Congressional approval to reappoint Eisenhower to his former military grade and seniority, although he was denied any military emoluments; instead he received the retired pension of a president.)

In early 1962, Walker campaigned to become governor of Texas and came in last of five candidates with less than 10% of the vote Democratic primary election to the eventual winner, John Connally. In October 1962, Walker was arrested for promoting riots at the University of Mississippi in protest against the admission of black student James Meredith into the all-white university. Attorney General Robert F. Kennedy ordered Walker committed to a mental asylum for a 90-day evaluation, but the ACLU and psychiatrist Thomas Szasz protested along with rightist groups, and Walker was released in five days. Attorney Robert Morris in early 1963 convinced a Mississippi grand jury not to charge Walker with a crime.

Walker reported that he was the target of an assassination attempt at his home on April 10, 1963, but escaped serious injury when a bullet fired from outside hit a window frame and fragmented. After its investigation into the assassination of John F. Kennedy, the Warren Commission concluded that Walker's assailant had been Lee Harvey Oswald.

Walker was born in 1909 in the town of Center Point in Kerr County, Texas, in the Texas Hill Country. He graduated in 1927 from the New Mexico Military Institute. He attended the United States Military Academy at West Point, from which he graduated in 1931.

Walker's training was in artillery, but in World War II he commanded a sub-unit of the Canadian-American First Special Service Force. Walker took command of the force's 3rd Regiment while still in the United States, and commanded the regiment throughout its time in the Aleutian Islands campaign and Italy. Their first combat actions began in December 1943, and after battling through the Winter Line, the force was withdrawn for redeployment to the Anzio beachhead in early 1944. After the fight for Rome in June 1944, the force was withdrawn again to prepare for Operation Dragoon. In August 1944, Walker succeeded Robert T. Frederick as the unit's second, and last, commanding officer. The FSSF landed on the Islands of Hyeres off the French Riviera in the autumn of 1944, defeating a strong German garrison. Walker commanded the FSSF when it was disbanded in early 1945.

Walker experienced combat during the Korean War, commanding the Third Infantry Division's 7th Infantry Regiment and serving as a senior advisor to the army of the Republic of Korea.

Walker was then assigned as commander of the Arkansas Military District in Little Rock, Arkansas. In 1957, he implemented an order by President Dwight D. Eisenhower to quell civil disturbances related to the desegregation of Little Rock's Central High School. Osro Cobb, the US Attorney for the Eastern District of Arkansas, recalls that Walker "made it clear from the outset ... that he would do any and everything necessary to see that the black students attended Central High School as ordered by the federal court... he would arrange protection for them and their families, if necessary, and also supervise their transportation to and from the school for their safety."

Walker repeatedly protested to Eisenhower that using federal troops to enforce racial integration was against his conscience. Although he obeyed orders and successfully integrated Little Rock High School, he began listening to segregationist preacher Billy James Hargis and oil tycoon H. L. Hunt, whose anti-communist radio program Life Line was supported by conservative activist and publisher Dan Smoot. Anti-communist activists in the late 1950s claimed that communists controlled important parts of the U.S. government and the United Nations, and that some Soviet spies and agents occupied prominent jobs within the federal government.