Lisa Ann Kelly (Irish Laoise Ní Cheallaigh, born May 7, 1977) is a singer of both classical and Celtic music. She has taken part in many musical theatre productions and concerts, and is a founding and former member of the musical group Celtic Woman.

For Disney, in the film Tinker Bell and the Lost Treasure, she recorded a song called "If You Believe" with her fiddler friend Máiréad Nesbitt, and they covered "When You Wish Upon a Star" for CW's lullaby compilation.