Sir William St Quintin, 3rd Baronet, of Harpham in Yorkshire, was an English merchant and Whig politician who sat in the House of Commons from 1695 to 1723. He held a succession of public offices.
- Occupation
- politician
- Position held
- Member of Parliament in the Parliament of England, Member of the Privy Council of Ireland, member of the 1st Parliament of Great Britain, member of the 2nd Parliament of Great Britain
- Citizenship
- Kingdom of Great Britain, Kingdom of England
- Born
- 1662