List of authors by name: O
List of authors by name:A - B - C - D - E - F - G - H - I - J - K - L - M - N - O - P - Q - R - S - T - U - V - W - X - Y - Z
- Charles Oberndorf
- Robert C. O'Brien
- Constance O'Day-Flannery
- Scott O'Dell
- Elisabeth Ogilvie
- Janette Oke
- Patricia Oliver
- Gilda O'Neill
- Jerry Ordway, (born 1957)
- Marek Oramus
- Alice Orr
- Abraham Ortelius (1527-1598)
- George Orwell, (1903-1950) (pseudonym of Eric Arthur Blair)
- Mary Pope Osbourne
- John Ostrander
- Ruth Owen
