Annie Elizabeth Fredericka Horniman CH was an English theatre matron and manager. She established the Abbey Theatre in Dublin and founded the first regional repertory theatre company in Britain at the Gaiety Theatre in Manchester. She encouraged the work of new writers and playwrights, including W. B. Yeats, George Bernard Shaw and members of what became known as the Manchester School of dramatists.

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.