Encyclopedias, Almanacs, Transcripts, and Maps
- Ignatius Loyola 1491–1556 Saint and Founder of the Jesuit Order
- Iguaçú
- Iguaçu Falls
- Ijo
- Ikha al-Watani Party
- Ikhwan
- Ikhwān al-Ṣafāʾ
- Il'in, Ivan Aleksandrovich (1883–1954)
- Ilanon
- Illapa
- Illescas, Carlos (1918–1998)
- Illia, Arturo Umberto (1900–1983)
- Illich, Ivan
- Illuminationism
- Illusions
- İlmiyye
- Ilocanos
- Ilongot
- Ilongot
- Imagery, Mental