Sunidhi Chauhan (Hindi: सुनिधि चौहान; born Nidhi Chauhan on 14 August 1983) is an Indian playback singer, best known for her Hindi film songs in Bollywood. She is credited with over 2000 songs.

Chauhan began to sing at the age of four[3] and was discovered by a local TV anchor.[4] She won recognition through a televised singing contest, Meri Awaz Suno, which she won, and made her entrance into playback singing with the Hindi film Shastra.

Her breakthrough was Ram Gopal Varma's film Mast, in which she sang the hit song, "Ruki Ruki Si Zindagi."[4] She has been nominated for fourteen Filmfare Awards, winning it on three occasions. She has won two Star Screen Awards, two IIFA Awards and one Zee Cine Award.