Sir John St Aubyn, 5th Baronet, was a British Member of Parliament, High Sheriff of Cornwall and Grand Master of the Freemasons. Born in London, he succeeded to the baronetcy on 12 October 1772, at which point he inherited Clowance, the family's estate near Crowan, Cornwall.
- Occupation
- politician, paleontologist
- Position held
- member of the 4th Parliament of the United Kingdom, member of the 16th Parliament of Great Britain, member of the 15th Parliament of Great Britain, High Sheriff of Cornwall
- Citizenship
- Kingdom of Great Britain
- Born
- May 17, 1758
