Richard M. Webster (April 29, 1922 – March 4, 1990) was an American politician from Missouri. He attended the University of Missouri and worked as an attorney in Carthage, Missouri. He was elected to the Missouri House of Representatives, in 1948, 1950, and 1953 (special election). He served as Speaker of the House in 1954. He was elected to the Missouri State Senate in 1962 and was re-elected 6 times. He served in the Missouri Senate until his death in 1990.