The county constituency of Northamptonshire, in the East Midlands of England was a constituency of the House of Commons of the Parliament of England, then of the Parliament of Great Britain from 1707 to 1800 and of the Parliament of the United Kingdom from 1801 to 1832 and was represented in Parliament by two MPs, traditionally known as Knights of the Shire. After 1832 the county was split into two new constituencies, North Northamptonshire and South Northamptonshire.