Demi Lambourne (born 30 April 1996) is an English football goalkeeper who plays for Women's Championship club Sunderland.

[2] In the 2014 FA WSL season Oxford joined the inaugural FA WSL 2 and Lambourne made 18 appearances in her first season in senior football, following an injury to the club's regular goalkeeper Hannah Cox.

[3] In 2015 Lambourne established herself as Oxford's recognised first-choice goalkeeper, and signed a new contract with the club.

[5] She made her FA WSL debut in November 2021, in a 1–0 defeat by Everton at Pirelli Stadium.

[6] On 28 September 2023, Lambourne signed on loan with Crystal Palace for the 2023–24 Women's Championship season.