Ruth Mackay (9 May 1878 – 31 March 1949) was a British stage and silent film actress. She was married to actor Eille Norwood. She was born in Kennington in London in 1878, the daughter of David McDonald MacKay (1839–1910) and Florence née Dignam (1846–). Her daughter was Marjorie Florence Grahame - the actress Jane Grahame (1899-1981). In 1905 Mackay married the actor Eille Norwood; they were to remain together until his death.