Pontypool was a county constituency in the town of Pontypool in Monmouthshire. It returned one Member of Parliament to the House of Commons of the Parliament of the United Kingdom, elected by the first past the post voting system. The constituency was created for the 1918 general election, and was replaced with Torfaen for the 1983 general election. This was to correspond with the name and area of the Torfaen local authority created in 1974. The Torfaen constituency contained the whole of the old Pontypool seat, adding just 247 electors from Monmouth.