John St Aubyn (1613–1684) was an English politician who sat in the House of Commons of England in 1640. He served as a colonel in the parliamentary army in the English Civil War.
- Occupation
- politician
- Position held
- Member of Parliament in the Parliament of England, Member of the April 1640 Parliament, Member of the Third Protectorate Parliament, Member of the Second Protectorate Parliament
- Citizenship
- Kingdom of England
- Born
- 1610
- Died
- 1684