Historic Denbighshire (Welsh: Sir Ddinbych) is one of thirteen traditional counties in Wales, a vice-county and a former administrative county, which covers an area in north east Wales. It is a maritime county, bounded to the north by the Irish Sea, to the east by Flintshire, Cheshire and Shropshire, to the south by Montgomeryshire and Merionethshire, and to the west by Caernarfonshire.