Donald Lester Jackson (January 23, 1910 – May 27, 1981) was a U.S. Representative from California. Born in Ipswich, Edmunds County, South Dakota, Jackson attended the public schools of South Dakota and California. He served as a private in the United States Marine Corps from 1927 to 1931 and again from 1940 until discharged as a colonel in 1945 with two years' combat service overseas. He engaged in public relations, and worked as a reporter and editor in Santa Monica, California, from 1938 to 1940. He served as director of publicity for the city of Santa Monica, in 1939 and 1940.