Fleabag is a British comedy-drama television series created and written by Phoebe Waller-Bridge, based on her one-woman show first performed in 2013 at the Edinburgh Fringe Festival. The series was produced by Two Brothers Pictures for digital channel BBC Three, in a co-production agreement with Amazon Studios. Waller-Bridge stars as the title character, a free-spirited but angry and confused young woman living in London. Sian Clifford co-stars as Fleabag's sister Claire, with Andrew Scott joining in the second season; most of the show's main characters are never named, including Waller-Bridge's and Scott's. The protagonist frequently breaks the fourth wall, providing exposition, internal monologues, and running commentary to the audience.

The show premiered on 21 July 2016 and concluded its second and final series on 8 April 2019. It received widespread acclaim from critics, particularly for its writing, acting, and the uniqueness and personality of the title character. Many critics and viewers have called it one of the greatest comedy series of all time as well as one of the greatest television series of all time. Waller-Bridge won the British Academy Television Award for Best Female Comedy Performance for the first series. The second series received 11 Primetime Emmy Award nominations and won six, with Waller-Bridge earning Outstanding Comedy Series, Outstanding Lead Actress, and Outstanding Writing for a Comedy Series; additional acting nominations were received by Clifford, Olivia Colman, and guest stars Fiona Shaw and Kristin Scott Thomas. The series received the Golden Globe Awards for Best Television Series and Best Actress for Waller-Bridge, and a nomination for Scott.