Mimi Keene (born 5 August 1998, in Woodford, Redbridge, London) is a British actress, known for her role as Cindy Williams in the BBC soap opera EastEnders. Keene studied at Italia Conti Academy of Theatre Arts from 2009-2014.

Keene's career began on the stage, making her professional debut playing Janey in Kin at The Royal Court Theatre from 19 November to 23 December 2010. In 2013, Keene appeared in CBBC's Sadie J as Brandy May Lou and in Our Girl as Jade Dawes Between 2013 and 2015, Keene was a series regular in EastEnders, playing Cindy Williams. In 2016, Keene appeared in an episode of Casualty as Lana Westmore. Keene also played Megan in a short film, The Escape, in 2017. Keene also had voice roles for video games, Castlevania: Lords of Shadow 1 and 2. In 2019, Keene will star in independent feature, Close. She will also portray the young version of Edith Tolkien in Tolkien. In 2019, Keene began playing Ruby in the Netflix comedy-drama Sex Education.

Mimi Keene (* 5. August 1998 in Hertfordshire, England) ist eine britische Schauspielerin. Sie wurde durch ihre Rollen in der Seifenoper EastEnders sowie der Netflix-Serie Sex Education bekannt.

Keene studierte von 2009 bis 2014 am Italia Conti Academy of Theatre Arts in London. Am Royal Court Theatre in London begann sie Ende des Jahres 2010 in der Rolle der Janey im Theaterstück Kin ihre Schauspielkarriere. 2013 folgte ihr Debüt in der von CBBC produzierten Fernsehserie Sadie J. Von 2013 bis 2015 spielte sie in 122 Folgen die Rolle der Cindy Williams in der britischen Seifenoper EastEnders. Seit Januar 2019 verkörpert sie in der von Netflix produzierten Serie Sex Education die Schülerin Ruby. 2019 spielte Keene im Kinofilm Tolkien die junge Edith Tolkien.