Gilbert Jack (Latinized: Jachaeus, Jacchaeus; c. 1578 – April 17, 1628) was Scottish Aristotelian philosopher and a physician.
In 1626 he held the funeral oration for his deceased colleague Willebrord Snellius.
- Institutiones Physicae (1614)
- Primae Philosophiae Institutiones (1616)
- Institutiones Medicae (1624)
The Institutiones Physicae is in nine books, and accepts the occult influence of the heavens.
- Andrew Pyle (editor), Dictionary of Seventeenth Century British Philosophers (2000), article Jack, Gilbert, pp. 463-466.
- Nicholas Thompson, The Long Reach of Reformation Irenicism: the Considerationes Modestae et Pacificae of William Forbes (1585—1634), p. 10
- Gilbert Jack at the Mathematics Genealogy Project
- Lynn Thorndike, History of Magic and Experimental Science, vol. 12 (1923) p. 390.