EastEnders: E20 is a British Internet soap opera, which began airing on 8 January 2010. A spin-off from the established BBC soap EastEnders, it is set in EastEnders' regular setting of Albert Square, a Victorian square in the fictional borough of Walford, in the East End of London. Each series follows a group of teenage characters: Zsa Zsa Carter, Leon Small, Fatboy and Mercy Olubunmi in series 1; Asher Levi and his brother Sol, Naz Mehmet, and Stevie Dickinson in series 2; and Ava Bourne, Donnie Lester and Faith Olubunmi in series 3. The show's title comes from Walford's fictional London postcode district, E20. The four characters from series 1 also appear in EastEnders, as well as Faith from series 3.

EastEnders: E20 originally aired as part of the main show's 25th anniversary celebrations. It was devised in a bid to develop and nurture new talent, including writers, actors, composers and remixers, and target a younger audience, as well as to attempt to drive more people onto the Internet. The series was the idea of executive producers Diederick Santer, who wanted a show where regular EastEnders characters would be in the background, and John Yorke, who wanted to improve the portrayal of teenagers in EastEnders and to get younger people writing for it.