Authors - O
- Oakley, Natasha
- O'Bannon, Ann
- Oberlies, Rita
- O'Brien, Caragh
- O'Brien, Judith
- O'Brien, Kathleen
- O'Caragh, Mary
- O'Connell, Shannon
- O'Connor, Doris
- O'Donnell, Jodi
- O'Donnell, Laurel
- Oh, Madeleine
- O'Hara, Kate
- O'Hurley, Alexandra
- Oldfield, Elizabeth
- Oliver, Tess
- Olney, Patricia
- O'Neal, Barbara
- O'Neill, Jude
- O'Reilly, Kathleen
- O'Reilly, Wynter
- Orloff, Erica
- Orr, Alice
- Orr, Zelma
- Ortega, Annmarie
- Ortolon, Julie
- Orwig, Sara
- Osborne, Maggie
- Owen, Ann
- Owen, Ruth
- Owens, Cynthia
- Owens, Robin D.
