Jimmy O'Dea (1899-7 January, 1965) was an Irish comedian.

Jimmy O'Dea was born in Dublin and was educated locally where one of his classmates was the future Taoiseach of the Republic of Ireland, Sean Lemass. O'Dea went to Edinburgh where he qualified as an optician. Following that he returned to Dublin where, in his spare time, he took part in amateuer dramatics. In 1927 he took to the stage full time. he formed a partnership with Harry O'Donovan. Together they created O'Dea's most famous character - Biddy Mulligan, the Pride of the Coombe. O'Dea had a successful career in pantomime and he toured Ireland and England many times.

Jimmy O'Dea died in Dublin on 7 January 1965.