Skip to main content - O'Shea, Tessie (c. 1913–1995)
- O'Sullivan, Mary Kenney (1864–1943)
- O'Sullivan, Maureen (1911–1998)
- Oakar, Mary Rose (1940—)
- Oakley, Annie (1860–1926)
- Oakley, Violet (1874–1961)
- Oberheuser, Herta (1911—)
- Oberon, Merle (1911–1979)
- Ocampo, Silvina (1903–1993)
- Ocampo, Victoria (1890–1979)
- Ochoa, Blanca Fernández (c. 1964—)
- Octavia (39–62 CE)
- Octavia (c. 69–11 BCE)
- Oda (806–913)
- Oda (fl. 1000)
- Oda of Bavaria (fl. 890s)
- Oda of Germany and North Marck (fl. 900s)
- Oda of Lorraine (fl. mid-1000)
- Oddon, Yvonne (1902–1982)
- Odena, Lina (1911–1936)
