Emma Harrison is an actress, model and dancer, best known for the role of Joanna Hartman in the Australian soap-opera Neighbours.

Joanna Evans is a fictional character from the Australian soap opera Neighbours, played by Emma Harrison. Joanna was introduced as the younger half-sister of established character, Annalise Hartman. She made her first on screen appearance on 26 May 1995. Following Davies' departure from Neighbours in 1996, rumours began that Harrison's character would be written out of the show. However, the actress signed a new long-term contract with Neighbours a few months later. In February 1997, producers decided to write Joanna out of the show. A reporter for the Daily Mirror said Harrison was written out due to rows with the producers over her poor acting. Joanna departed on screen on 15 April 1997. In 2005, Harrison was invited to return to Neighbours for the 20th anniversary episode, but she did not appear.