Tip O'Neill, American lawyer and politician, 55th Speaker of the United States House of Representatives (died 1994)

Thomas Phillip "Tip" O'Neill Jr. was an American Democratic Party politician from Massachusetts who served as the 47th speaker of the United States House of Representatives from 1977 to 1987, the third-longest tenure in history and the longest uninterrupted tenure. He represented northern Boston in the House from 1953 to 1987.

The speaker of the United States House of Representatives, commonly known as the speaker of the House or House speaker, is the presiding officer of the United States House of Representatives, the lower chamber of the United States Congress. The office was established in 1789 by Article I, Section II, of the U.S. Constitution. By custom and House rules, the speaker is the political and parliamentary leader of the House and is simultaneously its presiding officer, de facto leader of the body's majority party, and the institution's administrative head. Speakers also perform various other administrative and procedural functions. Given these many roles and responsibilities, the speaker usually does not personally preside over debates—that duty is instead delegated to members of the House from the majority party—nor regularly participate in floor debates.

December 9 is the 343rd day of the year in the Gregorian calendar; 22 days remain until the end of the year.