Katy Wix (born 28 February 1980) is a Welsh actress and comedian. She is best known for her television roles as Daisy in Not Going Out, Carole in Stath Lets Flats and Mary in Ghosts. She has also appeared in Outnumbered, Miranda and as a regular contestant in series 9 of Taskmaster.
Wix was born in Cardiff and attended the University of Warwick before going on to the Royal Welsh College of Music & Drama.
In 2007, she joined the cast of sitcom Not Going Out as recurring character Daisy and then went on to be a regular from Series 3 until her final appearance in the 2015 Christmas special. At this point her nicknames included: The Rebel MC, The Failing Franchise, Leather Trilby, Doktor Avalanche and Bill Smith. In Torchwood: Children of Earth she plays Rhiannon Davies, the sister of Ianto Jones. In 2010, she presented the BBC Three series The King Is Dead. She made guest appearances on the BBC shows Horrible Histories, Outnumbered (2010) and Absolutely Fabulous (2011). She also appeared in the Harvey's Furniture Store sponsorship bumpers for Coronation Street.