William Walton Butterworth

William Walton Butterworth
8th United States Ambassador to Canada
In office
October 4, 1962 – September 10, 1968
PresidentJohn F. Kennedy
Lyndon B. Johnson
Preceded byLivingston T. Merchant
Succeeded byHarold F. Linder
1st United States Ambassador to the European Communities
In office
August 10, 1961 – October 25, 1962
PresidentJohn F. Kennedy
Succeeded byJohn W. Tuthill
United States Ambassador to Sweden
In office
July 5, 1950 – December 9, 1953
PresidentHarry S. Truman
Dwight D. Eisenhower
Preceded byH. Freeman Matthews
Succeeded byJohn M. Cabot
1st Assistant Secretary of State for Japanese Affairs
In office
March 28, 1950 – July 4, 1950
PresidentHarry S. Truman
Preceded byPosition established
Succeeded byPosition abolished
1st Assistant Secretary of State for Far Eastern Affairs
In office
September 29, 1949 – March 28, 1950
PresidentHarry S. Truman
Preceded byPosition established
Succeeded byDean Rusk
Personal details
Born(1903-09-07)September 7, 1903
New Orleans, Orleans Parish, Louisiana
DiedMarch 31, 1975(1975-03-31) (aged 71)
Manhattan, New York City, New York
Cause of deathCirrhosis of the liver
Resting placeNew Orleans, Orleans Parish, Louisiana

William Walton Butterworth (September 7, 1903 – March 31, 1975) was an American diplomat. He was United States Ambassador to Canada. Butterworth is best known for his work on Asian-American foreign relations, particularly during the clash of the communists and nationalists in post-war China. He was also instrumental in laying the groundwork for the European Union via his work with the European Coal and Steel Community and European Economic Community.