Sir John Derwentwater, of Castlerigg, Cumbria and Ormside, Westmorland, was an English politician.
- Occupation
- politician
- Position held
- Member of Parliament in the Parliament of England, Member of the 1386 Parliament, Member of the February 1388 Parliament, Member of the 1369 Parliament
- Born
- 1301
- Died
- 1396
