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
- Michelle Obama (born 1964)
- Patrick O'Brian (1914–2000)
- Fitz James O'Brien (1828–1862)
- Robert C. O'Brien (1918–1973)
- Michael O'Brien (born 1948)
- Flannery O'Connor (1925–1964)
- Constance O'Day-Flannery
- Scott O'Dell (1898–1989)
- Laurel O'Donnell
- Kenzaburō Ōe (born 1935)
- Elisabeth Ogilvie (1917–2006)
- John O'Hara (1905–1970)
- Bayo Ojikutu (born 1971)
- Gabriel Okara (born 1921)
- Janette Oke (born 1935)
- Jenny Oldfield (born 1949)
- Gregg Olsen
- Eugene O'Neill (1888–1953)
- Onyeka
- Ömer Seyfettin (1884–1920)
- Michael Ondaatje (born 1943)
- Kenneth Oppel (born 1967)
- Joachim Oppenheim (1832–1891)
- Robert Oppenheimer (1904–1967)
- Bill O'Reilly (born 1949)
- Jerry Ordway (born 1957)
- Marek Oramus (born 1952)
- Mary Orr (1910–2006)
- José Ortega y Gasset (1883–1955)
- Abraham Ortelius (1527–1598)
- George Orwell (1903–1950) (pseudonym of Eric Arthur Blair)
- Arthur Osborne (1906–1970)
- John Osborne (1929–1994)
- Mary Pope Osborne (born 1949)
- Tam O'Shaughnessy (born 1952)
- Pat O'Shea (1931–2007)
- John Ostrander (born 1949)
- Niyi Osundare (born 1947)
- Ovidius (43 BC–AD 17/18)
- Ruth Owen (1885–1954)
- Wilfred Owen (1893–1918)
- Elsie J. Oxenham (1880–1960)
- Amos Oz (born 1939)
- Ismet Özel (born 1944)
- Joshua Ozersky (born 1967)
- O. Henry (1862–1910)
- Cynthia Ozick (born 1928)