Kate Beahan (born 12 October 1974) is an Australian film actress.
Beahan was born in Perth. She appeared mostly in movies and TV series in Australia. Her best-known American film role was playing Sister Willow Woodward in the 2006 horror remake The Wicker Man opposite Nicolas Cage.
Her father, Michael Beahan, was an Australian Labor Party Senator from Western Australia from 1987 to 1996.