Educational magazines
- Oberdorfer, Don 1931-
- Oberg, Michael Leroy
- Oberlin, Loriann Hoff 1961–
- Oberly, James W. 1954- (James Warren Oberly)
- Oberman, Sheldon 1949-
- Oberman, Sheldon 1949-2004
- Obradovíc, Nadezda 1936–
- Obrestad, Tor 1938–
- Obst, Lynda (Rosen) 1950-
- Obstfeld, Raymond 1952-
- Ocampo, José Antonio 1952-
- Ocean, T. Lynn
- Ocean, T. Lynn
- Ochart, Yvonne 1949- (Luz Yvonne Ochart Torres)
- Ochs, Stephen J.
- Ochs, Vanessa 1953–
- Ochsner, Gina 1970–
- Ocker, Christopher (Michael) 1958-
- Ockert, Jason
- Oda, Makoto 1932–