Authors: O
- Oates, Joyce Carol
- Oates, Stephen B.
- Oberman, Sheldon
- Oberndorf, Charles
- Odom, Mel
- Oe, Kenzaburo
- Offutt, Andrew J.
- Okri, Ben
- Olds, Sharon
- Olesha, Yuri Karlovich
- Oliver, Mary
- Oliver, Chad
- Oliver, Patricia
- Olmsted, Marc
- Olsen, Tillie
- Olsen, Lance
- Olson, Charles
- Oltion, Jerry
- Omar Khayyam
- Ondaatje, Michael
- Opie, Amelia
- Orczy, Emmuska
- Orlovsky, Peter
- Orman, Kate
- Orr, Gregory
- Orr, Alice
- Orton, Joe
- Orwell, George
- Osborn, David
- Osborne, Charles
- Osborne, Cary G.
- Osburn, Jesse
- Osier, John
- Osofisan, Femi
- Ostriker, Alicia
- Oudot, Susan
- Ouellette, Pierre
- Ovid
- Owen, Wilfred
- Owens, Rochelle
- Owens, Damien
- Owenson, Sydney
- Ozick, Cynthia