May Leslie Stuart (born Mary Catherine Barrett, January 1887[1] – 20 June 1956) was an English actress and singer in operetta and Edwardian musical comedy from 1909 to 1915.

[2] Stuart acted and sang on the London stage, with roles in Pinkie and the Fairies (as "Beauty", 1909),[5] Sunlight and Shadow (1910),[6] The Slim Princess (1910),[7] The Count of Luxembourg (1911), The Hope (1911), The Crown of India (as "Delhi", 1912),[8][n 2] an adaptation of Get-Rich-Quick Wallingford (1913),[6] The Girl Next Door (1915),[10] Florodora (as "Lady Holyrood" in the 1915 revival)[11][12] and The Case of Lady Camber (title role, 1915).

[13] A reviewer mentioned her "brilliant" acting in creating the role of Lady Camber as a highlight of the last work.

[15] She appeared on the music hall stage[16] and made some recordings as a singer in 1915, in both settings accompanied by her father on piano, and singing his songs.

[20] Her obituaries in Variety and The Stage record that she and her husband were involved in theatrical production after her father's death.