Ó Baoill Aindrias úrscéalaí & géarscéalaí
O’Brien, Edna novelist and short story writer
O’Brien, Flann novelist, playwright & satirist
O’Brien, George memoirist
O’Brien, Jean poet
O’Brien, Kate novelist, travel writer & biographer
Ó Cadhain, Máirtín úrscéalaí & géarscéalaí
O’Callaghan, Conor poet
O’Callaghan, Julie poet
O’Casey, Sean playwright & autobiographer
Ó Conghaile, Micheál file, drámadóir, úrscéalaí & géarrscéalaí.
O’Connell, Fergus novelist
O’Connor, Clairr poet, playwright and novelist
O’Connor, Conleth poet, playwright & novelist
O’Connor, Frank stort-story writer, novelist, autobiographer & critic
O’Connor, Joseph novelist, stort-story writer, humourist
O’Connor, Karen poet & short story writer
O’Connor, Tommy Frank novelist
O’Connor, Ulick biographer, poet and playwright
O’Dea, Michael poet
Ó Díreáin, Máirtín file
O’Doherty, Brian novelist & critic
O’Donnell, Mary poet, short-story writer, novelist
O’Donovan, Síofra novelist
O’Donnell, John poet
O’Donnell, Peadar novelist & playwright
O’Donoghue, Bernard poet
O’Donoghue, Gregory poet
O’Donoghue, Mary poet
O’Donohue, John poet & philosopher
O’Driscoll, Ciaran poet
O’Driscoll, Dennis poet
Gréagóir Ó Dúill file
O’Dwyer, Tony poet
O’Faolain, Julia short story writer, novelist, editor & translator
O’Faoláin, Sean short story writer, novelist, editor & biographer
O’Flaherty, Liam short story writer & novelist
Ó Floinn/O’Flynn, Críostóir/Christoir file, drámadóir, úrscéalaí & translator
O’Gaora, Colm short story writer & novelist
O’Grady, Desmond poet & translator
O’Hagan, Sheila poet
O’Loughlin, Michael poet, short story writer & novelist
O’Mahony, Nessa poet
O’Malley, Ernie non-fiction writer
O’Malley, Mary poet
Ó Muirthile, Liam file
O’Neill, Joseph novelist
O’Reilly, Caitriona poet
O’Reilly, Patricia novelist
O’Reilly, Sean short story writer
O’Riordan, Kate novelist, playwright and television screenwriter
O’Rourke, TS novelist
O’Siadhail, Micheal poet
Ó Searcaigh, Cathal file agus drámadóir
Ó Snodaigh, Pádraig file
O’Sullivan, Derry file
Ó Tuama, Seán file
O’Toole, Fintan biographer and critic
Ó Tuairisc/Watters, Eoghan/Eugene file & úrscéalaí
Ormsby, Frank poet & editor
Owens, Damien novelist