Chichester is a local government district in West Sussex, England. It is named after the city of Chichester, which is its largest settlement and where the council is based. The district includes the towns of Midhurst, Petworth and Selsey and surrounding rural areas, including many villages. The district includes part of the South Downs National Park, and Chichester Harbour is a designated Area of Outstanding Natural Beauty. At the 2021 census the district had a population of 124,531.

West Sussex is a ceremonial county in South East England. It is bordered by Surrey to the north, East Sussex to the east, the English Channel to the south, and Hampshire to the west. The largest settlement is Crawley, and the county town is the city of Chichester.