Fay Sargent (born Mary Gertrude Hannan, 16 January 1890 – 23 December 1967) was an Irish singer, actor, and journalist.
From a young age she was involved with the Gaelic League in London, possibly influenced by her cousin Richard Barry O'Brien.
She played the part of Mrs Golder in John MacDonagh's The Irish Jew at the Empire in 1921, alongside Jimmy O'Dea.
Her other broadcasting work included adaptations of classic children's stories, and performing in some of John MacDonagh's radio plays.
She returned to the Abbey in 1956 for St. John Greer Ervine's Boyd's shop, and in 1958 for a small part in Micheál Mac Liammóir's adaptation of The informer at the Gate.