Editing List of playwrights (section)

==O==
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*[[Dan O'Brien (playwright)|Dan O'Brien]] (born 1974, United States)
*[[Sean O'Brien (writer)|Sean O'Brien]] (born 1952, England)
*[[Seán O'Casey]] (1880–1964, Ireland)
*[[Eugene O'Neill]] (1888–1953, United States)
*[[Gerlinde Obermeier]] (1942–1984, Austria)
*[[Thomas Odell (writer)|Thomas Odell]] (1681–1749, England))
*[[Clifford Odets]] (1906–1963, United States)
*[[Bolaji Odofin]] (living, Nigeria) in English
*[[Reggie Oliver (writer)|Reggie Oliver]] (born 1952, England)
*[[Han Ong]] (born 1968, Philippines/United States) in English
*[[Onyeka]] (Onyeka Nubia, living, England)
*[[Valantina Abu Oqsa]] (born 1967), Palestine
*[[Emma Orczy]] (Baroness Orczy, 1865–1947, England)
*[[Dael Orlandersmith]] (living, United States)
*[[Joe Orton]] (1933–1967, England)
*[[John Osborne]] (1929–1994, England)
*[[Peter Oswald]] (born 1965, England)
*[[Thomas Otway]] (1652–1685, England)
*[[Gary Owen (playwright)|Gary Owen]] (born 1972, Wales) in English
*[[Rochelle Owens]] (born 1936, United States)
*[[William Henry Oxberry]] (1808–1852, England)
*[[Helen Oyeyemi]] (born 1984, England)
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