54°30′22″N 6°02′38″W / 54.506°N 6.044°W
| Lagan Valley | |
|---|---|
| Former County constituency for the Parliament of Northern Ireland | |
| Former constituency | |
| Created | 1969 |
| Abolished | 1973 |
| Election method | First past the post |
| (1921–72) |
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Lagan Valley was a single-member county constituency of the Parliament of Northern Ireland.