Olympia Jean Snowe (née Bouchles, born February 21, 1947) is the senior United States Senator from Maine. She is a Republican and a leading moderate within the party.

Snowe has become widely known for her ability to influence the outcome of close votes and Senatorial filibusters.

In 2006, she was named one of "America's Top Ten Senators" by Time Magazine. Congressional Quarterly noted that her presence at the negotiating table in the 107th Congress was "nearly a necessity." Her political popularity in her home state is the highest of any current U.S. Senator; as of November 22, 2006, she enjoyed a 79 percent approval rating in her home state of Maine.