Sheridan Smith (born 25 June 1981) is an English actress, mostly known for playing Janet Keogh (née Smith) in the BBC sitcom Two Pints of Lager and a Packet of Crisps.

Smith was born in in Epworth, Lincolnshire and from an early age studied dance with the Joyce Mason School of Dancing in Scunthorpe. She was a member of the National Youth Music Theatre from 1995-2001, performing a number of lead roles in productions such as Bugsy Malone and Into the Woods.

Smith's theatre credits include the musical Into The Woods at London's Donmar Warehouse, and Shakespeare's The Taming of the Shrew and A Midsummer Night's Dream at the Open Air Theatre, Regent's Park.

She also played Audrey in the stage production of Little Shop of Horrors at The Menier Chocolate Factory, London, from November 2006 which then moved to The Duke Of York's Theatre in March 2007, and due to a very successful run moved again at the end of June 2007 to The New Ambassadors Theatre, its run ended in September 2007. Smith received a nomination for the 2008 Olivier Award for Best Actress in a Musical, for her performance in the show.

Smith appeared as Vanessa in Tinderbox: a Revenge Comedy by Lucy Kirkwood at the Bush Theatre, Shepherd's Bush, in April 2008.

Smith is currently playing the lead Elle Woods in the musical version of Legally Blonde as it transferred from Broadway to London's West End in December 2009.