Educational magazines
- Ortlip, Carol A(ileen) 1954-
- Ortner, Sherry B. 1941–
- Ortolon, Julie
- Orton, Anthony 1937-
- Orwin, Joanna 1944-
- Osawa, Arimasa 1956–
- Osborn, Elinor 1939-
- Osborn, Karen 1954-
- Osborne, Adam 1939-2003
- Osborne, Ben 1974–
- Osborne, Betsey 1957-
- Osborne, Denise
- Osborne, Eric W. 1970-
- Osborne, Lawrence 1958–
- Osborne, Liz (W.L. Hesse, Bridget Kraft)
- Osborne, Margaret Ellen 1941-
- Osborne, Mary Pope 1949-
- Osborne, Richard (Ellerker) 1943-
- Osborne, Roger
- Osborne-McKnight, Juilene