Culture magazines
- O'Brien, David M(ichael)
- O'Brien, Edna 1932–
- O'Brien, George
- O'Brien, Gregory (Leo)
- O'Brien, Lucy
- O'Brien, Maureen
- O'Brien, Patrick K.
- O'Brien, Sean
- O'Brien, Sean
- O'Brien, Tim 1946–
- O'Callaghan, Sean
- O'Callahan, Jay
- O'Collins, Gerald Glynn
- O'Connell, Carol
- O'Connell, Jack
- O'Connell, Laurence J.
- O'Connell, Marvin R(ichard)
- O'Connell, Rebecca
- O'Connor, Alan
- O'Connor, Colin