John Willett Adye (1745–1815), in later life John Willett Willett, was a British politician.
- Occupation
- politician, plantation owner, collector
- Position held
- member of the 18th Parliament of Great Britain, member of the 1st Parliament of the United Kingdom, member of the 2nd Parliament of the United Kingdom
- Citizenship
- Kingdom of Great Britain, United Kingdom of Great Britain and Ireland
- Born
- January 1, 1745
- Died
- September 26, 1815