Allbrook is a settlement and civil parish in the Eastleigh district in Hampshire, England.

Under local government reorganisation, a larger Borough of Eastleigh including a number of rural parishes was created.

The parish was created on 1 April 2010 as Allbrook following a Community Governance Review conducted by Eastleigh Borough Council in 2009.

This was an effort to better integrate the areas of Allbrook Village and the northern part of the Boyatt Wood estate.

Before the building of the extensive housing estate in Boyatt Wood in the 1970s much of the northern part was part of the traditional Allbrook area and the designation "North Boyatt" has no historical significance.