Ellen Maud O'Shea (29 October 1882 – 21 June 1969), known professionally as Nell Emerald, was an English-born actress and film producer.

All five of the O'Shea sisters were on the music hall stage from an early age, with their mother as their manager.

[3] Among her other silent films were The Grip of Iron (1914), A Bold Adventuress (1915),[4] Fires of Innocence (1922), Chester Forgets Himself (1924, and adaptation of a story by P. G. Wodehouse),[5] and A Girl of London (1925).

[7] She also produced and appeared in Chinatown Nights (1938), a film later called "indescribably bad" by one critic.

[8] She also co-wrote at least one screenplay that was produced, This Week of Grace (1933), a recently rediscovered comedy starring Gracie Fields.