Chichester () is a cathedral city in West Sussex, in South-East England. It is the only city in West Sussex and is its county town. It has a long history as a settlement from Roman times and was important in Anglo-Saxon times. It is the seat of the Church of England Diocese of Chichester, with a 12th-century cathedral.
The city is a hub of several main road routes, and has a railway station, theatre, hospital, schools and museums. The River Lavant runs through, and partly beneath, the city.