Olympia Jean Snowe (née Bouchles; born February 21, 1947) is an American businesswoman and politician who was a United States Senator from Maine from 1995 to 2013. Snowe, a member of the Republican Party, became known for her ability to influence the outcome of close votes, including whether to end filibusters. In 2006, she was named one of America's Best Senators by Time magazine. Throughout her Senate career, she was considered one of the most moderate members of the chamber.

On February 28, 2012, Snowe announced that she would not seek re-election in November 2012, and retired when her third term ended on January 3, 2013. She cited hyper-partisanship leading to a dysfunctional Congress as the reason for her retirement from the Senate. Her seat went to former governor Angus King, a former Democrat and current independent.

Snowe is a senior fellow for the Bipartisan Policy Center and co-chairs its Commission on Political Reform.