Nicole Marie Appleton (born December 7, 1974) is a pop singer.

Appleton was born in Hamilton, Ontario. She has three older sisters; Lori, Lee, and Natalie. The family lived in Toronto, New York City, and London while the girls grew up.

In 1993, Nicole and her sister Natalie joined Melanie Blatt and Shaznay Lewis in forming the band All Saints. The band was a success but broke up in 2001. Nicole and Natalie formed a new band Appleton.

Appleton is in a relationship with Liam Gallagher of the group Oasis. The couple have a son, Gene.