The Metropolitan Borough of Kirklees is a metropolitan borough of West Yorkshire, England. It has a population of 422,500 and includes the settlements of Batley, Birstall, Cleckheaton, Denby Dale, Dewsbury, Heckmondwike, Holmfirth, Huddersfield, Kirkburton, Marsden, Meltham, Mirfield and Slaithwaite. Huddersfield is the largest settlement of the district, and its centre of administration.