Vanessa Lee Carlton (born August 16, 1980) is an American soft rock/Piano pop singer, songwriter, and pianist best known for the Billboard top five, Grammy-nominated single "A Thousand Miles" from her debut album, Be Not Nobody which was released April 30, 2002, and certified platinum in the U.S.

Her music, along with that of her contemporary Michelle Branch to whom she is sometimes compared, has had an influence on female solo pop singer-songwriters in the 21st century, including Kate Voegele, Lights, Sara Bareilles (another piano pop artist), Colbie Caillat and Tristan Prettyman.

Carlton's second album, Harmonium (released November 9, 2004), debuted at number 33 on the U.S. Billboard 200 and had sold 179,000 copies as of February 2006, with the single "White Houses," peaking at 86 in the U.S. Billboard Hot 100. She subsequently parted company from her record label A&M, though she still holds a dedicated fanbase.

Her third album, Heroes and Thieves, was released on October 9, 2007 by the The Inc./Universal Motown record labels.