- Charles Olson
- Anna Olson
- Michael Olson
- Jerry Oltion
- Stewart O'Nan
- Michael Ondaatje
- Robin O'Neil
- Tony O'Neill
- Eugene O'Neill
- Gerard K. O'Neill
- Barbara O'Neill
- Juan Carlos Onetti
- Michel Onfray
- Han Ong
- Oliver Onions
- Tadashi Ono
- Nicholas Onuf
- Joseph Opatoshu
- Amelia Opie
- Kenneth Oppel
- Mirela Oprea
- A. R. Orage
- Baroness Orczy
- Jerry Ordway
- Rebecca Ore
- Michael Oren
- Peggy Orenstein
- Susan Orlean
- Uri Orlev
- Rosalind Ormiston
- Sarah Orne Jewett
- P. J. O'Rourke
- Ilber Ortayli
- Abraham Ortelius
- Joe Orton
- George Orwell
- Eliza Orzeszkowa
- Anne G. Osborn
- Arthur Osborne
- Mary Pope Osborne
- Lawrence Osborne
- John Osborne
- Perri O'Shaughnessy
- Osho
- Martha Ostenso
- Emily Oster
- Alexander Osterwalder
- John Ostrander
- Ronnie O'Sullivan
- Niyi Osundare
Autori cunoscuți
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