Kate Marie Nash (born 6 July 1987) is an English singer-songwriter based in London. She had a UK #2 hit "Foundations" in 2007, followed by the platinum selling UK number 1 album Made of Bricks.

Nash was born in London, to an English father and Irish mother, on 6 July 1987. She grew up in Harrow, North West London. Nash first became interested in music during her childhood. She learned how to play the piano at Sandbach School. She attended St. John Fisher School (in Pinner) and moved onto the St Joan of Arc Catholic School, Rickmansworth. She was taught guitar by teacher Louis Mitchell. She studied Theatre at the BRIT School for Performing Arts and Technology in South London. She auditioned at the Bristol Old Vic Theatre School but was rejected, after which she fell down a flight of stairs, breaking her foot. During her recovery, she was housebound and unable to move, so her mother bought her an electric guitar. Nash used this time to focus on her songwriting: she began to write some new songs, finished old ones and decided that she would book a gig at a local bar in Harrow called Trinity on Gayton Road for herself, to showcase her songs.

Nash started her career in 2006. After several gigs, Nash uploaded her music to the social networking website MySpace. Nash found a manager for herself before proceeding to look for producers for her music.