Raymond Willard Karst (December 31, 1902 – October 4, 1987) was a U.S. Representative from Missouri.
He was admitted to the bar in 1926 and commenced the practice of law in St. Louis, Missouri.
He served as a captain, Ordnance Department, United States Army from 1942 to 1945.
He was appointed general counsel with Economic Stabilization Agency and later acting administrator.
In 1955, he resumed his law practice in Clayton, Missouri.