Oliver St John, 1st Earl of Bolingbroke,, previously styled the Hon. Oliver St John from 1596 to 1610, the Hon. Sir Oliver St John until 1618, then the 4th Baron St John of Bletso, was a 17th-century English nobleman and politician.
- Occupation
- politician
- Position held
- Member of Parliament in the Parliament of England, Member of the 1601 Parliament, Member of the 1604-11 Parliament, Lord Lieutenant of Bedfordshire
- Born
- 1580
- Died
- 1646
