John Lowther, 1st Viscount Lonsdale, PC FRS, known as Sir John Lowther, 2nd Baronet, from 1675 to 1696, was an English politician.
- Occupation
- politician
- Position held
- Member of Parliament in the Parliament of England, Lord Privy Seal, Member of the 1661-79 Parliament, Member of the 1679 Parliament
- Citizenship
- Kingdom of England
- Born
- April 25, 1655
- Died
- July 10, 1700