Claude Ernest Cady (May 28, 1878 – November 30, 1953) was a politician and businessman from the U.S. state of Michigan.
He was active in the amusement business, being owner of three theaters in Lansing (including the Capitol and Gladmer Theaters), and also had financial interests in other Michigan cities from 1914 to 1925, He was in the wholesale candy and fountain supplies business from 1925 to 1932.
In 1932, Cady defeated Republican Seymour H. Person in the general election to be elected as a Democrat from Michigan's 6th congressional district to the U.S. House of Representatives for the 73rd Congress, serving from March 4, 1933, to January 3, 1935.
Cady served as postmaster in Lansing 1935–1943, after which he retired from political and business life.
He died in Lansing and is interred in Mount Hope Cemetery there.