Simpson and Ashland is a civil parish in the south of Milton Keynes in Buckinghamshire, England.

The track was to have been relocated to Elfield Park near the National Bowl but as of January 2019[update] this had not yet happened.

Simpson was one of the villages of historic Buckinghamshire that was included in the "New City" in 1967.

As of January 2019[update], the only operational development there is the national headquarters and commissary for Domino's Pizza, UK.

The remainder of the district is taken up by development of the "blue light hub", a combined operational centre and base for emergency services in Milton Keynes, which opened on 1 July 2020.