William S. Day
| William S. Day | |
|---|---|
 | |
| Day in 1967 | |
| Member of the Washington House of Representatives for the 4th district | |
| In office 1959–1969 | |
| Member of the Washington State Senate for the 4th district | |
| In office 1969–1981 | |
| Personal details | |
| Born | January 31, 1923 Rockford, Illinois, United States |
| Died | May 27, 1984 (aged 61) Spokane, Washington, United States |
| Political party | Democratic |
William Scott Day (January 31, 1923 – May 27, 1984) was an American politician in the state of Washington. He served in the Washington House of Representatives from 1959 to 1969 and in the Senate from 1969 to 1981.[1] He was Speaker of the House from 1963 to 1965.[2]