Lucy Knightley (1742–1791) was a British politician who sat in the House of Commons between 1763 and 1784.
- Occupation
- politician
- Position held
- member of the 12th Parliament of Great Britain, member of the 13th Parliament of Great Britain, member of the 14th Parliament of Great Britain, member of the 15th Parliament of Great Britain
- Citizenship
- Kingdom of Great Britain
- Born
- February 23, 1741
- Died
- January 28, 1791
