May Fortescue (9 February 1859 – 2 September 1950) was an actress, singer and actor-manager of the Victorian era and a protégée of playwright W. S. Gilbert. She was a member of the D'Oyly Carte Opera Company from 1881 to 1883, when she left the company following her engagement to a nobleman, young Arthur William Cairns, Lord Garmoyle (later the 2nd Earl Cairns). Cairns soon broke off the engagement under pressure from his friends, and Fortescue returned to the stage in leading roles.