Encyclopedias, Almanacs, Transcripts, and Maps
- Idlibi, 'Ulfah al- (1921—)
- Ighodaro, Irene (1916–1995)
- Ihrer, Emma (1857–1911)
- Ildico (fl. 453)
- Ileana (1909–1991)
- Imagi of Luxemburg (c. 1000–1057)
- Immerwahr, Clara (1870–1915)
- Impekoven, Niddy (1904—)
- Ina Maria of Bassewitz-Levitzow (1888–1973)
- Inan (fl. c. 800)
- Inanna (fl. c. 3000 BCE)
- Inber, Vera (1890–1972)
- Inchbald, Elizabeth (1753–1821)
- Inescort, Frieda (1900–1976)
- Inga (fl. 1204)
- Ingebiorge (fl. 1045–1068)
- Ingeborg (1347–1370)
- Ingeborg (c. 1176–1237/38)
- Ingeborg (c. 1300–c. 1360)
- Ingeborg (d. 1254)