The A–Z of Mrs P

The A–Z of Mrs P is a musical conceived by Neil Marcus and written by British playwright Diane Samuels and British composer Gwyneth Herbert. Described as "a musical fable inspired by the autobiographies of Phyllis Pearsall", it tells the story of Phyllis Pearsall's creation of the London A to Z street atlas. The A–Z of Mrs P was performed in workshop with actress Sophie Thompson in May 2011. It opened in London at Southwark Playhouse on 21 February 2014, starring Peep Show actress Isy Suttie and Frances Ruffelle.

The Southwark Playhouse production received a four-starred review in The Times. Herbert won the Stiles and Drewe Song of the Year Award with her composition "Lovely London Town", one of the songs in the show.

A CD of the original London cast recording of the show was released on 24 March 2014 by SimG Productions.