Lagan Valley (UK Parliament constituency)

Lagan Valley
County constituency
for the House of Commons
Interactive map of boundaries from 2024
Location within Northern Ireland
Districts of Northern Ireland
Major settlementsLisburn
Current constituency
Created1983
Member of ParliamentSorcha Eastwood (Alliance)
Seats1
Created from

Lagan Valley is a Northern Ireland parliamentary constituency in the House of Commons of the United Kingdom covering the area of the Lagan Valley including the south part of County Antrim and the north-west part of County Down.

Its MP since the 2024 general election is Sorcha Eastwood of the Alliance Party. This was the first time since its creation it did not elect a unionist MP.