- Hugo, de Novo Castro1
- Hurtado de Mendoza, Diego1
- Hutchins, Laura (soloist, transcriptionist)1
- Institoris, Heinrich, 1430-1505 (Author)1
- Italia1
- Jacobus Philippus, Bergomensis, 1434-15201
- Jansson, Jan, 1558-16641
- Jansson, Jan, 1588-1664 (cartographer) (publisher)1
- Jerome, Saint, d. 419 or 20.1
- John, of Palentia, brother1
- Jordan, von Quedlinburg, approximately 1299-13801
- Josephus, Flavius1
- Latin Club of Univeristy High School (1937-1938)1
- Lawrence, Samuel A.T.1
- Lisebetten1
- Livy1
- Llull, Ramon, 1232?-13161
- Lucanus, 39-651
- Macrobius, Ambrosius Aurelius Theodosius1
- Maggio, Giuniano, active 15th century.1