Domenick John O'Malley (1 poem)
D. J. O'Malley/The N Bar N Kid White] (1867-1943 / New York City,USA

Lisa Olstein (14 poems)
Boston, Massachusetts

Charles Olson (9 poems)

Ulf Karl Olov Nilsson (3 poems)
1965 / Robertsfors

Olivia J. Warren (1 poem)
St. Albans, NY, USA

Olivia D. Michaels (3 poems)
Kernersville, NC, USA

Danilo Oliveira (1 poem)

Olive Walters (2 poems)
Solihull, West Midlands, UK

Olive Tilford Dargan (2 poems)

Olive Lumb (2 poems)
Hyde, Cheshire, UK

Olive I. Clark (2 poems)
Waynesboro, Virginia

Olive Harschar (3 poems)
Rockville Center, New York

Caroline Oliphant (7 poems)
1807-1831 / Scotland

Carolina Oliphant (76 poems)
1766-1845 / Scotland

Olga Z. Wakal (4 poems)
Brooklyn, New York, USA

Olga Iris (1 poem)
Staten Island, New York

Olga Batista (3 poems)
Bronx, New York, USA

Olevia Hodge (2 poems)
Bassett, Arkansas

Brigitte Oleschinski (11 poems)
1955 / Cologne

Olena Kalytiak Davis (4 poems)
1963 / United States

William Oldys (2 poems)
1690-1791 / England

Sharon Olds (35 poems)
November 19, 1942 / San Francisco

John Oldham (3 poems)
9 August 1653 – 9 December 1683 / England

Joseph Oyin Oladipo (1 poem)

Ola M. Joyner (1 poem)
Collinsville, Mississippi

dkihasd okwijfosd (2 poems)

Bulat Okudzhava (26 poems)
1924 - 1997 / Moscow

Ugiagbe Okoro (2 poems)

Niran Okewole (8 poems)
1977 / Abeokuta

Krittibas Ojha (1 poem)
1381 - 1461 / Nadia, West Bengal / India

Risto Oikarinen (4 poems)
1978 / Kajaani

Sanae Ohta (1 poem)

Theodore O'Hara (1 poem)
1820-1867 / the United States

John Bernard O'Hara (3 poems)
1862-1927 / Australia

Frank O'Hara (52 poems)
27 March 1926 – 25 July 1966 / Baltimore, Maryland

Thomas O'Hagan (7 poems)
6 March 1855 - 1 March 1939 / Toronto

William Henry Ogilvie (65 poems)
21 August 1869 – 30 January 1963 / Kelso, Scotland

John Ogilvie (1 poem)
1733-1814

Ai Ogawa (15 poems)
Florence Anthony] (21 October 1947 - 20 March 2010 / Albany, Texas

bernard ogalo oduor (1 poem)

Ernest O'Ferrall (5 poems)

Ofelia E.M.K. Shook (2 poems)
Fort White, Florida

St John of the Cross (1 poem)
1542 - 1591 / Fontiveros / Spain

Adam Oehlenschläger (302 poems)
14 November 1779 - 20 January 1850

Adam Got Oehlenschlaeger (20 poems)
1779-1850 / Denmark

Dennis O'Driscoll (10 poems)
1 January 1954 - / Thurles, County Tipperary

Bernard O'Dowd (22 poems)
11 April 1866 – 1 September 1953 / Beaufort

Thomas Odiorne (21 poems)
1769-1851 / USA

Casey O'Dell (1 poem)

Jonathan Odell (1 poem)
1737-1818 / Canada