Culture magazines
- O'Hara, Marjorie (Doreen)
- O'Hare, Jeff(rey A.)
- O'Higgins, Paul
- O'Kane, James M.
- O'Kane, Rosemary H(eather) T(eresa)
- O'Keeffe, Frank
- O'Leary, Patrick G.
- O'Leary, Patsy Baker
- O'Leary, Rosemary
- O'Malley, Padraig
- O'Malley, Vincent (J.)
- O'Mara, Peggy (Noreen)
- O'Marie, Sister Carol Anne
- O'Meara, John Joseph
- O'Neal, Hank
- O'Neil, Robert M.
- O'Neill, Jamie
- O'Neill, Joseph
- O'Neill, Judith (Lyall)
- O'Neill, Robert John