Encyclopedias, Almanacs, Transcripts, and Maps
- Jezreel Valley
- Jíbaro
- Jicaque
- Jicarilla
- Jijón y Caamaño, Jacinto (1890–1950)
- Jiménez de Palacios, Aurora (1922–1958)
- Jiménez de Quesada, Gonzalo (1509–1579)
- Jiménez Moreno, Wigberto (1909–1985)
- Jiménez Oreamuno, Manuel de Jesús (1854–1916)
- Jiménez Oreamuno, Ricardo (1859–1945)
- Jiménez, Enrique A. (1888–1970)
- Jimeno y Planes, Rafael (c. 1760–1825)
- Jingpo
- Jino
- Jinul (1158–1210)
- Jmaʾa Tribal Council
- Joachim of Fiore (c. 1135–1202)
- João I of Portugal (1357–1433)
- João II of Portugal (1466–1495)
- João III of Portugal (1502–1557)