William A. O'Neill

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William A. O'Neill
84th Governor of Connecticut
In office December 31, 1980 – January 9, 1991
Lieutenant	Joseph J. Fauliso
Preceded by	Ella Grasso
Succeeded by	Lowell Weicker
102nd Lieutenant Governor of Connecticut
In office January 3, 1979 – December 31, 1980
Governor	Ella Grasso
Preceded by	Robert Killian
Succeeded by	Joseph J. Fauliso
Member of the Connecticut House of Representatives from the 34th district
In office January 3, 1973 – January 3, 1979
Preceded by	Robert J. Vicino
Succeeded by	Dean P. Markham
Member of the Connecticut House of Representatives from the 52nd district
In office January 4, 1967 – January 3, 1973
Preceded by	District created
Succeeded by	Peter F. Locke Jr.
Personal details
Born	William Atchison O'Neill (1930-08-11)August 11, 1930 Hartford, Connecticut, U.S.
Died	November 24, 2007(2007-11-24) (aged 77) East Hampton, Connecticut, U.S.
Resting place	Connecticut State Veterans Cemetery Middletown, Connecticut
Political party	Democratic
Spouse	Nikki O'Neill ​ (m. 1962)​
Profession	Legislator
Military service
Allegiance	United States
Branch/service	United States Air Force
Years of service	1950–1953
Battles/wars	Korean War

William Atchison O'Neill (August 11, 1930 – November 24, 2007) was an American politician and member of the Democratic Party who served as the 84th Governor of Connecticut from 1980 to 1991. He was the second longest-serving governor in Connecticut history, with 10 years in office.