Louisa Claire Lytton (born 7 February 1989) is an English actress. She is known for her roles as Ruby Allen in EastEnders and Beth Green in The Bill. She also finished fourth in the fourth series of Strictly Come Dancing in 2006 and represented the UK at the Eurovision Dance Contest 2008, finishing ninth. Her theatre credits include playing Betty Rizzo in the 2017 UK touring production of the musical Grease.
Lytton made her first appearance in EastEnders on 18 March 2005, playing Johnny Allen's daughter Ruby Allen. Weeks after winning the "Sexiest Female" award at the British Soap Awards. In July 2006 it was announced that Lytton would be leaving EastEnders in November 2006. On the exit of her character, Lytton had commented: "I've really enjoyed my time at EastEnders. It has been a great experience which I will never forget but I am now looking forward to trying new things and not getting typecast."