Louise Appleton is a fictional character from the British ITV soap opera Emmerdale, played by Emily Symons. She made her first screen appearance during the episode broadcast on 20 June 2001. Louise arrived in the village as a temporary barmaid and ended up as co-landlady with best friend Diane Sugden, before selling to Diane's sister Val Lambert in 2006. The character last appeared in Emmerdale on 28 October 2008.

Emily Symons is an Australian actress, active on both Australian and British television. She is known for playing Anne Costello in the short-lived soap opera Richmond Hill in 1988 and when that series ended in 1989, she started playing Marilyn Chambers-Fisher in Home and Away. After almost ten years in that role, Symons moved to the UK and was immediately cast as Louise Appleton in the British soap Emmerdale. She also took part in the British show Dancing on Ice in 2007. She then returned to Australia in 2010 to reprise her role as Marilyn in Home and Away.