F. J. McCormick was an Irish actor who became known for his work at Dublin's Abbey Theatre. He acquired the stage name F.J. McCormick to disguise his identity from his current and future employers, and to avoid parental disapproval. He joined the Abbey at age 19, and acted in some 500 productions there. He is especially remembered for his work in the plays of Seán O'Casey.

The Abbey Theatre, also known as the National Theatre of Ireland, in Dublin, Ireland, is one of the country's leading cultural institutions. First opening to the public on 27 December 1904, and moved from its original building after a fire in 1951, it has remained active to the present day. The Abbey was the first state-subsidized theatre in the English-speaking world; from 1925 onwards it received an annual subsidy from the Irish Free State. Since July 1966, the Abbey has been located at 26 Lower Abbey Street, Dublin 1.