Kate Earl, born Kate Joy Smithson, (born October 8, 1981) is an American singer-songwriter.

Earl was born to Charles and Pomposa Smithson in Anchorage, Alaska. She is of Filipino and Dutch/Welsh descent. She began playing piano at 4, sang in her church choir, and began playing the guitar when she was seventeen.Earl moved to Los Angeles in 2004 and signed with The Record Collection. Her debut album, Fate is the Hunter, was released in May 2005. she is related to Quinton.

Earl left Record Collection in 2007 and signed with Universal Republic the following year. A self-titled album, Kate Earl was released as a digital download on August 18, 2009 and in physical copy on November 3, 2009. Earl is managed by the Tommy Mottola's Mottola Company. Kate Earl's songs "Can't Treat Me That Way" and "Learning to Fly" were used in the TV series Private Practice. Her song "Nobody" was featured in an episode of the CW network series 90210.