Mona Jean Russell Erdmann (December 31, 1917 - November 22, 2008) was a lawyer and politician from the U.S. state of Oklahoma. Russell served two terms, 1945 and 1947, in the Oklahoma Legislature. Russell represented Ottawa County before district lines had been established. Russell along with legislator Grace Mitchelson made history as the first two women to be elected to the Oklahoma House of Representatives from the same county for the same term.