Jane Maria Swift (born February 24, 1965) is an American politician who served as the 69th lieutenant governor of Massachusetts from 1999 to 2003 and, concurrently, as acting governor from April 2001 to January 2003. She is the only woman to perform the duties of governor of Massachusetts. At the time she became acting governor, Swift was 36 years old, making her the youngest female governor or acting governor in U.S. history. Since leaving elected office she has worked in the private sector as a Chief Executive Officer, board member and consultant for education technology companies, as well as serving on corporate and non-profit boards, teaching and lecturing on topics pertaining to women and leadership, and supporting philanthropies that address issues of importance to women and girls. S