Halifax is a constituency represented in the House of Commons of the UK Parliament since 2015 by Holly Lynch of the Labour Party.

Halifax is a town in the Metropolitan Borough of Calderdale, in West Yorkshire, England. It is near the east Pennine foothills. In the 15th century, the town became an economic hub of the old West Riding of Yorkshire, primarily in woollen manufacture with the large Piece Hall square later built for trading wool in the town centre. The town was a thriving mill town during the Industrial Revolution with the Dean Clough Mill buildings a surviving landmark. In 2011, it had a population of 88,134. It is also the administrative centre of the wider Calderdale Metropolitan Borough.