Skip to main content - Ostenso, Martha (1900–1963)
- Ostermeyer, Micheline (1922—)
- Ostrith (d. 697)
- Oswald, Marina (1941—)
- Oswalda, Ossi (1897–1948)
- Otero, Caroline (1868–1965)
- Ottenberg, Nettie Podell (1887–1982)
- Ottendorfer, Anna Uhl (1815–1884)
- Ottesen-Jensen, Elise (1886–1973)
- Ottey-Page, Merlene (1960—)
- Otto, Kristin (1966—)
- Otto-Peters, Luise (1819–1895)
- Otway-Ruthven, Jocelyn (1909–1989)
- Ouspenskaya, Maria (1876–1949)
- Ousset, Cécile (1936—)
- Outhwaite, Ida Rentoul (1888–1960)
- Overlach, Helene (1894–1983)
- Ovington, Mary White (1865–1951)
- Owen, Laurence (1945–1961)
- Owen, Maribel (1941–1961)
