Catherine Baker Knoll, American educator and politician, 30th Lieutenant Governor of Pennsylvania (b. 1930)

Catherine Baker Knoll (September 3, 1930 – November 12, 2008) was an American politician and member of the Democratic Party. She was the 30th Lieutenant Governor of Pennsylvania, serving under Governor Ed Rendell from 2003 to 2008, when she died in office. Prior to that, she served as the 32nd Pennsylvania State Treasurer from 1989 to 1997.