John Caius, also known as Johannes Caius and Ioannes Caius, was an English physician, second founder of Gonville and Caius College, Cambridge, scholar, and physician to Edward VI and Mary I.
- Occupation
- physician
- Position held
- Master of Gonville and Caius College, Cambridge, President of the Royal College of Physicians, President of the Royal College of Physicians
- Citizenship
- Kingdom of England
- Born
- October 6, 1510
- Died
- July 29, 1573
