Sidney Redding Mason (April 25, 1925 – January 29, 2009) was an American businessman and politician.
Mason was born in Flint, Michigan and served in the United States Navy and was commissioned a lieutenant.
In 1957, Mason moved to Duluth, Minnesota and was involved with the insurance and banking businesses.
He served in the Minnesota House of Representatives in 1971 and 1972 and was a Republican.
Mason died at his home in Duluth, Minnesota.