Sara Ullrika Watkins (born June 8, 1981) is an American singer-songwriter and fiddler. Watkins debuted in 1999 as the fiddler of the progressive bluegrass group Nickel Creek, which consisted of herself, her elder brother Sean, and mandolinist Chris Thile. As a band, they are notable for three wide-released albums: Nickel Creek, This Side, and Why Should the Fire Die?. Aside from singing and fiddling, Watkins also plays the ukulele and the guitar.

With Nickel Creek, Watkins has released five studio albums, one compilation album, and seven singles. Nickel Creek is currently on hiatus to branch off into new projects, and Watkins is pursuing a solo career, having released her debut, Sara Watkins, on Nonesuch Records on April 7, 2009.