Dictionaries, Thesauruses, Pictures, and Press Releases
- Ogiyenko, Valentina (1965–)
- Ognjenovic, Mirjana (1953–)
- Ogot, Grace (1930–)
- Ogunkoya, Falilat (1969–)
- Oh Kyo-Moon
- Oh Seung-Shin
- Oh Sung-Ok (1972–)
- Oh Yong-Ran (1972–)
- Ohara, Tomie (b. 1912)
- Ohlson, Agnes K. (1902–1991)
- Ohr, Martine (1964–)
- Ohsako, Tatsuko (1952–)
- Ohta, Tomoko (1933–)
- Oignt, Marguerite d' (d. 1310)
- Oikonomopoulou, Aikaterini (1978–)
- Oinuma, Sumie (1946–)
- Okamoto, Ayako (1951–)
- Okamoto, Mariko (1951–)
- Okamoto, Yoriko (1971–)
- Okayo, Margaret (1976–)