Lagan Valley (UK Parliament constituency)

Lagan Valley
County constituency for the House of Commons
Boundary of Lagan Valley in Northern Ireland.
Current constituency
Created	1983
Member of parliament	Jeffrey Donaldson (Democratic Unionist)
Created from	Antrim South, Belfast South, North Down and South Down
Overlaps
European Parliament constituency	Northern Ireland

Coordinates: 54°30′32″N 6°02′49″W / 54.509°N 6.047°W / 54.509; -6.047

Lagan Valley is a parliamentary constituency in the United Kingdom House of Commons.

1983-1997: The District of Lisburn, and the District of Castlereagh ward of Carryduff.

1997-2010: The District of Lisburn wards of Ballinderry, Ballymacash, Ballymacbrennan, Ballymacoss, Blaris, Derryaghy, Dromara, Drumbo, Dunmurry, Glenavy, Harmony Hill, Hilden, Hillhall, Hillsborough, Knockmore, Lagan Valley, Lambeg, Lisnagarvey, Maghaberry, Magheralave, Maze, Moira, Old Warren, Seymour Hill, Tonagh, and Wallace Park, and the District of Banbridge wards of Dromore North, Dromore South, Gransha, and Quilly.

2010-present: The City of Lisburn wards of Ballinderry, Ballymacash, Ballymacbrennan, Ballymacoss, Blaris, Dromara, Drumbo, Harmony Hill, Hilden, Hillhall, Hillsborough, Knockmore, Lagan Valley, Lambeg, Lisnagarvey, Maghaberry, Magheralave, Maze, Moira, Old Warren, Seymour Hill, Tonagh, Wallace Park, and part of Derryaghy, and the District of Banbridge wards of Dromore North, Dromore South, Gransha, and Quilly.

The seat was created in 1983, as part of an expansion of Northern Ireland's constituencies from 12 to 17, and was predominantly made up from parts of South Antrim and North Down. In their original proposals, in January 1980, the boundary commission proposed calling it 'Lagan'. In further revisions in 1995 it lost some areas to both Belfast West and Strangford. Currently the constituency contains most of Lisburn district and part of Banbridge district.