Jane Swift, American businesswoman and politician, Governor of Massachusetts

Jane Maria Swift is an American politician and nonprofit executive 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 was the first 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 in U.S. history.

The governor of the Commonwealth of Massachusetts is the head of government of the Commonwealth of Massachusetts. The governor is the head of the state cabinet and the commander-in-chief of the commonwealth's military forces.