North Somerset is a unitary authority in England. Its area covers part of the ceremonial county of Somerset but it is administered independently of the non-metropolitan county. Its administrative headquarters is in the town hall in Weston-super-Mare.

North Somerset borders the local government areas of Bristol, Bath and North East Somerset, Mendip and Sedgemoor. North Somerset contains the parliamentary constituencies of Weston-super-Mare and North Somerset.

Between 1 April 1974 and 31 March 1996, it was the Woodspring district of the county of Avon (named after Woodspring Priory, an isolated mediaeval church near the coast just north east of Weston-super-Mare). The district of Woodspring was formed from the municipal boroughs of Weston-super-Mare, Clevedon and Portishead urban districts, Long Ashton Rural District, and part of Axbridge Rural District.

Though the government proposed that the new unitary area be known as "North West Somerset" from 1 April 1996, the council voted instead to adopt the name "North Somerset" and so the name "North West Somerset" was never widely used. There remained some legal doubt as to whether the council had validly changed the name to "North Somerset", but in 2005 the council passed a resolution to put the matter beyond doubt.

The ceremonial and non-metropolitan county of Somerset (ⁱ/ˈsʌmərsɛt/ or /ˈsʌmərsɨt/) in South West England borders Bristol and Gloucestershire to the north, Wiltshire to the east, Dorset to the south-east, and Devon to the south-west. It is partly bounded to the north and west by the Bristol Channel and the estuary of the River Severn. Its traditional northern border is the River Avon, but the administrative boundary has crept southwards with the creation and expansion of the City of Bristol, and latterly the county of Avon and its successor unitary authorities to the north. Somerset's county town, Taunton, is in the south.

Somerset is a rural county of rolling hills such as the Blackdown Hills, Mendip Hills, Quantock Hills and Exmoor National Park, and large flat expanses of land including the Somerset Levels. There is evidence of human occupation from Palaeolithic times, and of subsequent settlement in the Roman and Anglo-Saxon periods. The county played a significant part in the consolidation of power and rise of King Alfred the Great, and later in the English Civil War and the Monmouth Rebellion.