Encyclopedias, Almanacs, Transcripts, and Maps
- João IV of Portugal (1604–1656)
- João Pessoa
- João V of Portugal (1689–1750)
- João VI of Portugal (1767–1826)
- Joaquim, Leandro (c. 1738–c. 1798)
- Jobet Búrquez, Julio César (1912–1980)
- Jobim, Antônio Carlos "Tom" (1927–1994)
- Jobson, Gary
- Jockey Club
- Jodl, Friedrich (1849–1914)
- Jodorowsky, Alejandro (1929–)
- Joffrey, Robert
- John of Damascus (c. 675–c. 750)
- John of Jandun (c. 1286–c. 1328)
- John of La Rochelle (c. 1190–1245)
- John of Mirecourt (Fourteenth Century)
- John of Paris (c. 1255–1306)
- John of Salisbury (c. 1115–1180)
- John of St. Thomas (1589–1644)
- John of the Cross, St. (1542–1591)