Grafton Regis is a village and civil parish in the south of the English county of Northamptonshire. The population of the civil parish (including Alderton) at the 2001 census was 152. This increased to 253 at the 2011 census. The village is east of the A508 road, on which it has a short frontage and two bus stops. It is ca. 8 miles (13 km) south of Northampton and 9 miles (14 km) north of Milton Keynes. This village is "linked" with the title of the Duke of Grafton (the first Duke was a son of King Charles II of England ).