Joseph Patrick "Joe" Kennedy, Sr. (September 6, 1888 – November 18, 1969) was a prominent American businessman, investor, and political figure.
Kennedy, an Irish American, was the father of U.S. President John F. Kennedy, United States Attorney General and Senator Robert F. Kennedy, United States Senator Edward M. Kennedy, naval officer Joseph P. Kennedy Jr, Special Olympics co-founder Eunice Kennedy Shriver, and former U.S. Ambassador to Ireland Jean Kennedy Smith; and the grandfather of U.S. Representatives Joseph P. Kennedy II and Patrick J. Kennedy.
He was a leading member of the Democratic Party and of the Irish Catholic community. He was the inaugural Chairman of the U.S. Securities and Exchange Commission (SEC), appointed by President Franklin D. Roosevelt (FDR), and later directed the Maritime Commission. Kennedy served as the United States Ambassador to the United Kingdom from 1938 until late 1940, including the early part of World War II.