Richard Louis "Dixie" Walker (April 13, 1922 – July 22, 2003) was an American scholar, author, and former ambassador to South Korea.

He served in the United States Army in World War II from 1943 to 1946, and drawing on a family missionary background and intensive language training while serving in the Army, he became a Mandarin Chinese language interpreter at General Douglas MacArthur's headquarters in the Pacific Theater of Operations.

He was partly responsible for securing the release of the imprisoned dissident Kim Dae-jung, who was under sentence of death and who would later become president of South Korea.

For this and other efforts, he received recognition from President Reagan and was awarded the highest civilian decoration of the U.S. Department of Defense.

He traveled frequently over many years to countries in East and Southeast Asia for service with the U.S. Department of State and the U.S. Information Agency.

He also served on the faculty of the National War College in Washington, D.C., of which he was a graduate, and he lectured at academic centers in Europe, Asia and Australia.