Ellsworth F. Bunker (May 11, 1894 – September 27, 1984) was an American businessman and diplomat who served as ambassador to Argentina, Italy, India, Nepal and South Vietnam.

His younger brother, Arthur Hugh Bunker (July 29, 1895 – May 19, 1964), was also a noted businessman, chairman of the executive committee of the War Production Board (1941–1945) during World War II, and president and then board chairman of American Metal Climax (AMAX).

[citation needed] Ellsworth Bunker was enrolled at Yale University in 1912 and graduated in 1916 with a major in economics and a minor in history.

[11][12] In November 1956 he was appointed ambassador to India and Nepal by Dwight D. Eisenhower,[13][14][15] and sworn in December 1956,[16] where he played a crucial role in the covert alliance between the two powers against China.

[17] Once in Saigon, he strongly supported the war efforts of Presidents Johnson and Richard Nixon, and applauded US incursions into Laos and Cambodia.

[19] Harriet had made friends with Bunkers' sister Katherine when the two girls attended Miss Porter's School in Farmington, Connecticut.

[28][29] The funeral was attended by his good friend and neighbor former senator George Aiken and former president Richard M. Nixon.

[30] His middle child, John Birkbeck Bunker (March 8, 1926 – May 26, 2005), a first lieutenant in World War II, died of cancer at his home in Wheatland, Wyoming at age 79.