The Lady Is a Square is a 1959 British comedy musical film directed by Herbert Wilcox and featuring Anna Neagle, Frankie Vaughan and Janette Scott. Its plot follows an aspiring singer who goes to work as a butler in the house of a classical music patron. It was Neagle's final film appearance and the last film directed by Wilcox although he produced several further films before his bankruptcy in 1964.