William George Clark was an American attorney, politician, and jurist who served as an Illinois state legislator (1953–1961), attorney general of Illinois (1961–1969), and as a justice of the Illinois Supreme Court (1976–1992). The offices Clark held covered all three branches of the Illinois governor.
- Occupation
- politician, jurist, judge
- Position held
- member of the Illinois House of Representatives, member of the State Senate of Illinois
- Citizenship
- United States
- Born
- July 16, 1924
- Died
- August 17, 2001
