Sir James Lowther, 4th Baronet, FRS was an English landowner, industrialist and Whig politician who sat in the House of Commons for 54 years between 1694 and 1755. His ownership and development of coal mines around Whitehaven in Cumberland gave him substantial revenues, and he was reputed the richest commoner in England.
- Occupation
- politician, industrialist, entrepreneur
- Position held
- Member of Parliament in the Parliament of England, member of the 11th Parliament of Great Britain, member of the 2nd Parliament of Great Britain, member of the 3rd Parliament of Great Britain