Caroline Pettinato Killeen (1926 – December 2014) was an American activist, perennial political candidate, self-proclaimed nature lobbyist, and former nun. She ran as a United States presidential candidate and officially qualified for the ballot in the New Hampshire primary in 2008 as a Democrat; she previously ran in 2004, 1996, 1992 and 1976. She ran on a pro-marijuana platform and is an advocate for energy conservation.Killeen has also run for various offices in Arizona. She ran for Mayor of Tucson in 1983, receiving 11 votes.