Crumlin is a village in County Antrim, Northern Ireland. It is at the head of a wooded glen on the Camlin River, near Lough Neagh, and west of Belfast city centre. It had a population of over 5,117 people in the 2011 Census. Belfast International Airport lies just north of the village.
A stone clock tower, built in 1897 as a memorial to a member of the Pakenham family who were landlords in the area, stands at the top of the village near the former railway station. The town's old linen mill was built in 1809.