The One Hundred Ninth Ohio General Assembly was the legislative body of the state of Ohio in 1971 and 1972. In this General Assembly, both the Ohio Senate and the Ohio House of Representatives were controlled by the Republican Party. In the Senate, there were 20 Republicans and 13 Democrats. In the House, there were 54 Republicans and 45 Democrats. It was the last General Assembly to use districts drawn after the 1966 apportionment.